Yazar
dr a byron leonard
10 cilt bulundu.
Dr. A. Byron Leonard · Illinois State Geological Survey
28 sayfa · 1974
Fossil Mollusks / Mollusks, Fossil / Paleontology / Moerasland / Weekdieren
Dr. A. Byron Leonard · Illinois State Geological Survey
23 sayfa · 1971
Fossil Mollusks / Mollusks, Fossil / Paleontology / Fauna
Dr. A. Byron Leonard · Yayınevi bilinmiyor
23 sayfa · 1957
Fossil Gastropoda / Gastropoda, Fossil / Illinois / Illinois. State Geological Survey. Frank Collins Baker Collection / Paleontology
Dr. A. Byron Leonard · New Mexico Bureau of Mines & Mineral Resources
19 sayfa · 1975
Fossil Mollusks / Geology / Mollusks, Fossil / Paleontology / Rocks, Sedimentary
Dr. A. Byron Leonard · New Mexico Bureau of Mines & Mineral Resources
44 sayfa · 1975
Fossil Mollusks / Geology / Geology, Stratigraphic / Mollusks, Fossil / Stratigraphic Geology
Dr. A. Byron Leonard · Ferd Voiland, Jr., State Printer
48 sayfa · 1950
Fossil Mollusks / Mollusks, Fossil / Paleontology
Dr. A. Byron Leonard · Bureau of Economic Geology, University of Texas
42 sayfa · 1962
Mollusks, Fossil / Paleontology / Fossil Mollusks