APA (7e ed.) Bronvermelding

Perry, M. (1990). Western civilization: A brief survey. Houghton Mifflin Company.

Chicago (17e ed.) Bronvermelding

Perry, Marvin. Western Civilization: A Brief Survey. Dallas Geneva: Houghton Mifflin Company, 1990.

MLA (9e ed.) Bronvermelding

Perry, Marvin. Western Civilization: A Brief Survey. Houghton Mifflin Company, 1990.