Penggayaan APA
BOTKIN, Daniel B., KELLER, Edward A.. (1983).
Environmental studies : .
Sydney:
Charles E. Merrill Publishing Company.
Chicago Style
BOTKIN, Daniel B., KELLER, Edward A..
Environmental studies :.
Sydney:
Charles E. Merrill Publishing Company,
1983.
Buku.
MLA Style
BOTKIN, Daniel B., KELLER, Edward A..
Environmental studies :.
Sydney:
Charles E. Merrill Publishing Company,
1983.
Buku.
Turabian Style
BOTKIN, Daniel B., KELLER, Edward A..
Environmental studies :.
Sydney:
Charles E. Merrill Publishing Company,
1983.
Buku.