Cita APA (7a ed.)
(1942). Civilization: Lectures delivered before the philosophical union of the Univ. of California 1941. Univ. of California Pr.
Cita Chicago Style (17a ed.)
Civilization: Lectures Delivered Before the Philosophical Union of the Univ. of California 1941. Berkeley & Los Angeles: Univ. of California Pr, 1942.
Cita MLA (9a ed.)
Civilization: Lectures Delivered Before the Philosophical Union of the Univ. of California 1941. Univ. of California Pr, 1942.
Precaución: Estas citas no son 100% exactas.