TY  - BOOK
T1  - Contributions to the mineralogy of the newark gorup in Pennsylvania
A1  - Wherry, Edgar Theodore
PP  - Filadelfia
PB  - Univ. of Pennsylvania
YR  - 1910
UL  - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.77994
OP  - 23
ER  -