Introduction to paleoecology,

By Gekker, Roman Fedorovich, 1900-. New York, American Elsevier Pub. Co., 1965 , "This translation was sponsored by the American Geological Institute and supported by the National Science Foundation."

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Invertebrate fossils /

By Moore, Raymond Cecil, 1892-. New York : McGraw-Hill, 1952

Place Hold on Invertebrate fossils /

University of Zambia Library Search for 'au:"Moore, Raymond Cecil, 1892-"'

Introduction to paleoecology,

Invertebrate fossils /