APA (7th ed.) Zitazioa

University of California. (1978). Plant growth regulators: Study guide for agricultural pest control advisors. University of California.

Chicago Style (17th ed.) Zitazioa

University of California. Plant Growth Regulators: Study Guide for Agricultural Pest Control Advisors. Berkeley: University of California, 1978.

MLA (9th ed.) Zitazioa

University of California. Plant Growth Regulators: Study Guide for Agricultural Pest Control Advisors. University of California, 1978.