APA (7e ed.) Bronvermelding

Isaac, J. P. (1971). Factors in the ruin of antiquity: A criticism of ancient civilization. Printed by Bryant Press.

Chicago (17e ed.) Bronvermelding

Isaac, James Paton. Factors in the Ruin of Antiquity: A Criticism of Ancient Civilization. [S.l: Printed by Bryant Press, 1971.

MLA (9e ed.) Bronvermelding

Isaac, James Paton. Factors in the Ruin of Antiquity: A Criticism of Ancient Civilization. Printed by Bryant Press, 1971.