Dyfyniad APA
ebrary, Inc, & Eliassen, L. P. (2010). Nonprescription drugs: Considering a new class for behind-the-counter drugs. Nova Science Publishers.
Dyfyniad Arddull Chicago
ebrary, Inc, and Lars P. Eliassen. Nonprescription Drugs: Considering a New Class for Behind-the-counter Drugs. New York: Nova Science Publishers, 2010.
Dyfyniad MLA
ebrary, Inc, and Lars P. Eliassen. Nonprescription Drugs: Considering a New Class for Behind-the-counter Drugs. Nova Science Publishers, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.