Citazione Stile APA (7a Edizione)

Abrol, B., & Chopra, I. (1960). Medicinal plants of the arid zones. United Nations Educational Scientific and Cultural Organization.

Citazione stile Chigago Style (17a edizione)

Abrol, B.K, e I.C Chopra. Medicinal Plants of the Arid Zones. France: United Nations Educational Scientific and Cultural Organization, 1960.

Citatione MLA (9a ed.)

Abrol, B.K, e I.C Chopra. Medicinal Plants of the Arid Zones. United Nations Educational Scientific and Cultural Organization, 1960.