Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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