Cita APA (7a ed.)
Blumenthal, J. C. (1972). English 3200: A programed course in grammar and usage. Harcourt Brace Jovanovich.
Cita Chicago Style (17a ed.)
Blumenthal, Joseph C. English 3200: A Programed Course in Grammar and Usage. New York: Harcourt Brace Jovanovich, 1972.
Cita MLA (9a ed.)
Blumenthal, Joseph C. English 3200: A Programed Course in Grammar and Usage. Harcourt Brace Jovanovich, 1972.
Precaución: Estas citas no son 100% exactas.