APA (7th ed.) Citation

Phelps-Gunn, T., & Phelps-Terasaki, D. (1982). Written language instruction: Theory and remediation. Aspen Systems Corp..

Chicago Style (17th ed.) Citation

Phelps-Gunn, Tricia, and Diana Phelps-Terasaki. Written Language Instruction: Theory and Remediation. Rockville, Md.: Aspen Systems Corp., 1982.

MLA (9th ed.) Citation

Phelps-Gunn, Tricia, and Diana Phelps-Terasaki. Written Language Instruction: Theory and Remediation. Aspen Systems Corp., 1982.