APA (7 ম সংস্করণ) উদ্ধৃতি

Williamson, E. M., By Okpako , D. T., & Evans , F. J. (1996). Pharmacological methods in phytotheropy: Research : selection, preparation and pharmacological evaluation of plant meterial. Wiley.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Williamson, Elizabeth M., David T. By Okpako , এবং Fred J. Evans. Pharmacological Methods in Phytotheropy: Research : Selection, Preparation and Pharmacological Evaluation of Plant Meterial. New York: Wiley, 1996.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Williamson, Elizabeth M., et al. Pharmacological Methods in Phytotheropy: Research : Selection, Preparation and Pharmacological Evaluation of Plant Meterial. Wiley, 1996.