APA (7th ed.) Citation

Roberts, P. The Robert's English series: A linguistic program (Teacher's edition.). Harcourt Brace and World.

Chicago Style (17th ed.) Citation

Roberts, Paul. The Robert's English Series: A Linguistic Program. Teacher's edition. New York: Harcourt Brace and World.

MLA (9th ed.) Citation

Roberts, Paul. The Robert's English Series: A Linguistic Program. Teacher's edition. Harcourt Brace and World.