Penggayaan APA
HOPF, Peter S.. (1974).
Designer's guide to osha: .
New York:
McGraw-Hill Book Company.
Chicago Style
HOPF, Peter S..
Designer's guide to osha:.
New York:
McGraw-Hill Book Company,
1974.
Buku.
MLA Style
HOPF, Peter S..
Designer's guide to osha:.
New York:
McGraw-Hill Book Company,
1974.
Buku.
Turabian Style
HOPF, Peter S..
Designer's guide to osha:.
New York:
McGraw-Hill Book Company,
1974.
Buku.