Cita APA (7a ed.)

Johnson, D., & Johnson, J. E. (2007). Universal religions in world history: The spread of Buddhism, Christianity, and Islam to 1500. McGraw-Hill.

Cita Chicago Style (17a ed.)

Johnson, Donald, y Jean Elliot Johnson. Universal Religions in World History: The Spread of Buddhism, Christianity, and Islam to 1500. Boston [u.a.]: McGraw-Hill, 2007.

Cita MLA (9a ed.)

Johnson, Donald, y Jean Elliot Johnson. Universal Religions in World History: The Spread of Buddhism, Christianity, and Islam to 1500. McGraw-Hill, 2007.