Library of Congress. Classification Division & Perley, C. W. (1927). Classification: Class B, part II, BL-BX: Religion. Printed as manuscript. U.S. Govt. print. off..
Chicago-Zitierstil (17. Ausg.)Library of Congress. Classification Division und Clarence Warner Perley. Classification: Class B, Part II, BL-BX: Religion. Printed as Manuscript. Washington: U.S. Govt. print. off., 1927.
MLA-Zitierstil (8. Ausg.)Library of Congress. Classification Division und Clarence Warner Perley. Classification: Class B, Part II, BL-BX: Religion. Printed as Manuscript. U.S. Govt. print. off., 1927.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.