Gaya APA
Packer,{et.all}, L., Fatrhall, L., T. (1957).
Industrial Toxicology .
The United State of America:
The Wlliams &Wilkins Company.
Gaya MLA
Packer,{et.all}, L., Fatrhall, L., T..
Industrial Toxicology.
The United State of America:
The Wlliams &Wilkins Company,
1957.
Text.