Gaya APA
Climates past and present. (1981).
California:
William Kaufmann.
Gaya Chicago
Climates past and present.
.
California:
William Kaufmann,
1981.
Tesis.
Gaya MLA
Climates past and present.
.
California:
William Kaufmann,
1981.
Tesis.
Gaya Turabian
Climates past and present.
California:
William Kaufmann,
1981.
Tesis.