TY - BOOK AU - Mather, Kirtley Fletcher TI - SOURCE BOOK IN GEOLOGY U1 - 550 PY - 1967/// CY - Cambridge PB - Harvard University Press KW - Geology -- History KW - Geology -- Collected Works N1 - Includes Bibliography; Sequel To A Source Book In Geology Published In 1939 Reprinted In 1967 ER -