Cita APA (7th ed.)

Johnson, B., & Gamer, S. (2006). Advanced word power. Townsend Press.

Cita Chicago (17th ed.)

Johnson, Beth, i Susan Gamer. Advanced Word Power. Marlton, N.J: Townsend Press, 2006.

Cita MLA (9th ed.)

Johnson, Beth, i Susan Gamer. Advanced Word Power. Townsend Press, 2006.