World Health Organization & ebrary, Inc. (2003). WHO guidelines on good agricultural and collection practices [GACP] for medicinal plants. WHO.
Chicago Style (17th ed.) CitationWorld Health Organization and Inc ebrary. WHO Guidelines on Good Agricultural and Collection Practices [GACP] for Medicinal Plants. Geneva: WHO, 2003.
MLA引文World Health Organization and Inc ebrary. WHO Guidelines on Good Agricultural and Collection Practices [GACP] for Medicinal Plants. WHO, 2003.
警告：這些引文格式不一定是100％准確.