APA

Adams G. B., . (1922). Civilization during the Middle Ages, especially in relation to modern civilization. New York: Charles Scribner's.

Chicago

Adams George Burton, . 1922. Civilization during the Middle Ages, especially in relation to modern civilization. New York: Charles Scribner's.

Harvard

Adams G. B., . (1922). Civilization during the Middle Ages, especially in relation to modern civilization. New York: Charles Scribner's.

MLA

Adams George Burton, . Civilization during the Middle Ages, especially in relation to modern civilization. New York: Charles Scribner's. 1922.