Cita APA (7a ed.)

McClanahan, S. D., & Amstutz, D. D. (1988). Steck-Vaughn GED writing skills: Mechanics, usage, sentence structure. Steck-Vaughn Co..

Cita Chicago Style (17a ed.)

McClanahan, Susan D., y Donna D. Amstutz. Steck-Vaughn GED Writing Skills: Mechanics, Usage, Sentence Structure. Austin, TX: Steck-Vaughn Co., 1988.

Cita MLA (8a ed.)

McClanahan, Susan D., y Donna D. Amstutz. Steck-Vaughn GED Writing Skills: Mechanics, Usage, Sentence Structure. Steck-Vaughn Co., 1988.