Note 22 — 8 EARLY MAN AND THE GREAT EXTINCTION
Reading edition
K. P. Schmidt, “Herpetological Evidence for a Post-Glacial Eastward Extension of the Steppe in North America,” Ecology, 19:398-399 (1938).
Reading edition
K. P. Schmidt, “Herpetological Evidence for a Post-Glacial Eastward Extension of the Steppe in North America,” Ecology, 19:398-399 (1938).