Gaya APA
TURK, Jonathan. (1985).
Introduction to environmental studies .
Jepang:
CB College.
Gaya Chicago
TURK, Jonathan.
Introduction to environmental studies.
Jepang:
CB College,
1985.
Text.
Gaya MLA
TURK, Jonathan.
Introduction to environmental studies.
Jepang:
CB College,
1985.
Text.
Gaya Turabian
TURK, Jonathan.
Introduction to environmental studies.
Jepang:
CB College,
1985.
Print.