Gaya APA
Gray, David B. (1985).
Ecological beliefs and behaviors: assesment and change .
USA:
Greenwood Press.
Gaya Chicago
Gray, David B.
Ecological beliefs and behaviors: assesment and change.
USA:
Greenwood Press,
1985.
Text.
Gaya MLA
Gray, David B.
Ecological beliefs and behaviors: assesment and change.
USA:
Greenwood Press,
1985.
Text.
Gaya Turabian
Gray, David B.
Ecological beliefs and behaviors: assesment and change.
USA:
Greenwood Press,
1985.
Print.