APA (7th ed.) Citation
Roberts , P. (1967). The Robert english series: A linguistics program (1a. ed.). Harcourt , Brace.
Chicago Style (17th ed.) Citation
Roberts , Paul. The Robert English Series: A Linguistics Program. 1a. ed. United States: Harcourt , Brace, 1967.
MLA (9th ed.) Citation
Roberts , Paul. The Robert English Series: A Linguistics Program. 1a. ed. Harcourt , Brace, 1967.
Warning: These citations may not always be 100% accurate.