Maryland Geological Survey Charles Kephard Swartz b. 1861; William F Prouty 1879-1949 (William Frederick); Edward Oscar Ulrich 1857-1944; Ray S Bassler b. 1878 (Ray Smith)
Baltimore The Johns Hopkins press 1923
Localização:
IGC - Instituto de Geociências
(551.7310973 M393s )(Acessar)