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melvin n westwood
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Temperate-zone pomology
Melvin N. Westwood · Timber Press
428 sayfa · 1978
Nuts / Fruit-culture / Pests, control / Fruit / Sb355 .w43 1993
Effects of long-term fertilizer and management practices on growth and yield of pears grown in a clay adobe soil
Melvin N. Westwood · Agricultural Experiment Station, Oregon State University
39 sayfa · 1964
Pear / Growth / Yields / Fertilizers / Clay soils
Contract military air transport from the ground up
Melvin N. Westwood · M.N. Westwood
321 sayfa · 1995
Aerial operations, American / American Aerial operations / American Personal narratives / Aviation mechanics (Persons) / Biography
Pear decline
Melvin N. Westwood · Oregon State University, Cooperative Extension Service
Sayfa sayısı yok · 1962
Diseases and pests / Pear / Psylla