APA aipamena

CROCKETT, J. U. (1972). TREES. Virginia, Time-life Books.

Chicago Style aipamena

CROCKETT, James Underwood. TREES. Virginia, Time-life Books, 1972.

MLA aipamena

CROCKETT, James Underwood. TREES. Virginia, Time-life Books, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.