APA aipamena

SMITH, R. L. (1980). Ecology And Field Biology Robert Leo Smith. Harper & Row Publisher.

Chicago Style aipamena

SMITH, Robert Leo. Ecology And Field Biology Robert Leo Smith. Harper & Row Publisher, 1980.

MLA aipamena

SMITH, Robert Leo. Ecology And Field Biology Robert Leo Smith. Harper & Row Publisher, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.