MLA

McGuire, George Alexander, 1866-1934. Universal Negro catechism : a course of instruction in religious and historical knowledge pertaining to the race / compiled by George Alexander McGuire.. 1921. https://collections.library.yale.edu/catalog/16173377.

APA, 6th edition

McGuire, George Alexander, 1866-1934. (1921)[Universal Negro catechism : a course of instruction in religious and historical knowledge pertaining to the race / compiled by George Alexander McGuire.]. https://collections.library.yale.edu/catalog/16173377.