APA Style

Allen, L, V, J., McPherson, T, B. (2023). Ansel's pharmaceutical dosage forms and drug delivery systems twelfth edition (Twelfth edition). Phildelphia: Wolters Kluwer.

MLA Style

Allen, Loyd., V., Jr.., McPherson, Timothy, B.. "Ansel's pharmaceutical dosage forms and drug delivery systems twelfth edition". Twelfth edition Phildelphia: Wolters Kluwer, 2023. .