APA (7th ed.) Zitazioa

Weaver, R. J. (1972). Plant growth substances in agriculture. W. H. Freeman.

Chicago Style (17th ed.) Zitazioa

Weaver, Robert J. Plant Growth Substances in Agriculture. San Francisco: W. H. Freeman, 1972.

MLA (9th ed.) Zitazioa

Weaver, Robert J. Plant Growth Substances in Agriculture. W. H. Freeman, 1972.