APA (7th ed.) Citation

Martin, A. C., & Barkley, W. D. (2020). Seed Identification Manual (2nd printing, Reprint 2020.). University of California Press.

Chicago Style (17th ed.) Citation

Martin, Alexander C., and William D. Barkley. Seed Identification Manual. 2nd printing, Reprint 2020. Berkeley, CA: University of California Press, 2020.

MLA (9th ed.) Citation

Martin, Alexander C., and William D. Barkley. Seed Identification Manual. 2nd printing, Reprint 2020. University of California Press, 2020.