APA (7th ed.) Citation

Dugas, D. M. (1983). Relationships among process and product variables in an experimental teaching unit. [publisher not identified].

Chicago Style (17th ed.) Citation

Dugas, Donna Marie. Relationships Among Process and Product Variables in an Experimental Teaching Unit. [Place of publication not identified]: [publisher not identified], 1983.

MLA (9th ed.) Citation

Dugas, Donna Marie. Relationships Among Process and Product Variables in an Experimental Teaching Unit. [publisher not identified], 1983.