TY  - BOOK
AU  - Fries , Amos A. 
AU  - West , Clarence J.
TI  - Chemical warfare
U1  - 358.34 21st ed.
PY  - 1921///
CY  - New York
PB  - McGraw-Hill
KW  - Air warfare
KW  - Chemical warfare
N1  - Index: pp 441-45
ER  -