Gaya APA

Chicago, T, U, O. (1768). Knowledge in depth: Volume IX (Humadity - Ivory) (15). United States of America: Helen Hemingway Benton Publisher.

Gaya MLA

Chicago, The, University, Of. "Knowledge in depth: Volume IX (Humadity - Ivory)". 15 United States of America: Helen Hemingway Benton Publisher, 1768. Text.