TY - BOOK T1 - Pharmacognosy. Teh study of natural drug substances and certain allierd products A1 - Pratt, Robertson A2 - Youngken, Heber Wilkinson 1913 PP - Philadelphia PB - J. B. Lippincott YR - 1956 UL - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.4454 OP - 694 ER -