APA aipamena

Kennett J Frey. (1967). Plant breeding: A symposium held at Iowa State University. Iowa: Iowa State Univ.

Chicago Style aipamena

Kennett J Frey. Plant Breeding: A Symposium Held At Iowa State University. Iowa: Iowa State Univ, 1967.

MLA aipamena

Kennett J Frey. Plant Breeding: A Symposium Held At Iowa State University. Iowa: Iowa State Univ, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.