Yazar
j j symoens
25 cilt bulundu.
Hilde de Ridder-Symoens, Koen Goudriaan, J. J. van Moolenbroek, Ad Tervoort · BRILL
376 sayfa · 2003
Intellectual life / Education / History / Education, netherlands / Europe, intellectual life
J. J. Symoens · Laboratorium voor algemene plantkunde en natuurbeheer
46 sayfa · 1977
National parks and reserves / Natural areas
J. J. Symoens · Published on behalf of the East African Governments by Royal Botanic Gardens
19 sayfa · 2006
Potamogetonaceae / Botany, africa / Angiosperms
J. J. Symoens · Koninklijke Academie voor Overzeese Wetenschappen en Informatie Centrum van de Verenigde Naties
91 sayfa · 1987
Congresses / Environmental protection / Pollution
J. J. Symoens · Centre d'information des Nations unies à Bruxelles
135 sayfa · 1991
Natural disasters / Congresses
J. J. Symoens · Académie royale des sciences d'outre-mer
264 sayfa · 1993
Indicators (Biology) / Climatic changes / Congresses
J. J. Symoens · Royal Academy of Overseas Sciences
260 sayfa · 1992
Whales / Cetacea / Congresses / Porpoises / Dolphins
J. J. Symoens · Administration générale de la coopération au développement
236 sayfa · 1990
Women in development / Congresses / Belgain Economic assistance
J. J. Symoens · Royal Academy of Overseas Sciences
419 sayfa · 1988
Food supply / Government policy / Congresses / Agriculture and state / Nutrition policy
J. J. Symoens · Technical Centre for Agricultural and Rural Co-operation
587 sayfa · 1995
Fish-culture / Congresses / Agricultural ecology / Integrated agricultural systems / Fish culture
J. J. Symoens · Jardin botanique national de Belgique
Sayfa sayısı yok · 1977
Botany / Ruppia maritima / Ruppiaceae
J. Alexandre, J. J. Symoens · Académie royale des sciences dʼoutre-mer
129 sayfa · 1985
Laterite / Congresses
J. Alexandre, J. J. Symoens · Royal Academy of Overseas Sciences
258 sayfa · 1994
Climatic geomorphology / Congresses / Climatic changes
J. Alexandre, J. J. Symoens · Académie royale des sciences d'outre-mer
239 sayfa · 1989
Pediments (Geology) / Congresses / Weathering / Soil science
Pierre Salmon, J. J. Symoens · Académie royale des sciences d'outre-mer
145 sayfa · 1991
Social conditions / Congresses / Antiquities / Ethnology
J. J. Symoens, Mary Burgis, John J. Gaudet · United Nations Environment Programme
191 sayfa · 1981
Freshwater ecology / Hydrology / Nature conservation
J. J. Symoens, S. Geerts, Ludwig Triest · Royal Academy of Overseas Sciences
112 sayfa · 1992
Plant molluscicides / Congresses / Vector control / Schistosomiasis / Prevention
Paul Duvigneaud, J. J. Symoens, Institut des parcs nationaux du Congo belge · Institut des parcs nationaux du Congo belge
34 sayfa · 1948
Cyanobacteria
J. J. Symoens, Académie royale des sciences d'outre-mer, United Nations. Economic Commission for Africa., Belgium) United Nations. Information Centre and Liaison Office (Brussels, ACP-Group · Royal Academy of Overseas Sciences
516 sayfa · 1992
Transportation / Congresses / Telecommunication