APA aipamena

Kerr, R. S. (1960). Land, wood and water. :.

Chicago Style aipamena

Kerr, Robert S. Land, Wood and Water. :, 1960.

MLA aipamena

Kerr, Robert S. Land, Wood and Water. :, 1960.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.