TY  - BOOK
ED  -  Iowa State University. 
TI  -  1977 Herbicide manual for Ag chemical dealers
U1  -  AF PF 623 HER 
PY  - 1976///]
CY  -  Iowa : 
PB  -  Iowa State University, 
KW  -  Herbicides
KW  -  Handbooks, manuals, etc
ER  -