Yazar
Rolf Ludvigsen
11 cilt bulundu.
Rolf Ludvigsen · University of Washington Press
310 sayfa · 1996
Fossils / Paleontology / Natural history, british columbia
Rolf Ludvigsen, Graham Beard · Harbour Publishing
216 sayfa · 1998
Collection and preservation / Fossils / Vancouver (b.c.), description and travel / Gulf islands (b.c.) / Vancouver island (b.c.)
Rolf Ludvigsen · University of British Columbia Press
315 sayfa · 1996
British columbia, history / Fossils / Canada, antiquities
Rolf Ludvigsen · Royal Ontario Museum
41 sayfa · 1979
Paleontology / Trilobites / Paléontologie / Trilobieten / Ordovician Geologic Period
Thomas E. Whiteley, Gerald J. Kloc, Carlton E. Brett, Rolf (FWD) Ludvigsen · Cornell University Press
456 sayfa · 2002
Trilobites / Stratigraphic Geology / Pictorial works
Rolf Ludvigsen · University of the State of New York, State Education Dept.
82 sayfa · 1983
Paleontology / Trilobites
Rolf Ludvigsen · Energy, Mines and Resources Canada
98 sayfa · 1979
Geology / Paleontology / Stratigraphic Geology / Trilobites
Rolf Ludvigsen, Graham Beard · Whitecap Books
193 sayfa · 1994
Vancouver island (b.c.) / Canada, antiquities / Fossils / Collection and preservation