TY  - BOOK
AU  - Industrial Hygiene Foundation of America. 20 Reunión. Pitts-
TI  - Transactions of the general meeting and the conferences. Medical, Chemical-tox-
U1  - 614.850631 .I646r.20.    . 
CY  - Pittsburg
KW  - Higiene industrial - Congresos
N1  - 017835
ER  -