Cita APA (7th ed.)

Johnson, G. B. (2000). The living world (2nd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Johnson, George B. The Living World. 2nd ed. Boston: McGraw-Hill, 2000.

Cita MLA (8th ed.)

Johnson, George B. The Living World. 2nd ed. McGraw-Hill, 2000.