Cita APA (7th ed.)

Duncan, D. D. (1982). The world of Allah. Houghton Mifflin Company.

Cita Chicago (17th ed.)

Duncan, David Douglas. The World of Allah. Boston, Massachusetts: Houghton Mifflin Company, 1982.

Cita MLA (9th ed.)

Duncan, David Douglas. The World of Allah. Houghton Mifflin Company, 1982.