एपीए उद्धरण

Johnson, G. B. 1. (2010). Essentials of the living world (3rd ed.). Dubuque, IA: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Johnson, George B. 1942-. Essentials of the Living World. 3rd ed. Dubuque, IA: McGraw-Hill, 2010.

एमएलए उद्धरण

Johnson, George B. 1942-. Essentials of the Living World. 3rd ed. Dubuque, IA: McGraw-Hill, 2010.