Cita APA (7a ed.)

Shepherd, R. (1974). Alpha II: A first course in college writing. (1a. ed.). Science Research Associates.

Cita Chicago Style (17a ed.)

Shepherd, Ray. Alpha II: A First Course in College Writing. 1a. ed. Canadá: Science Research Associates, 1974.

Cita MLA (9a ed.)

Shepherd, Ray. Alpha II: A First Course in College Writing. 1a. ed. Science Research Associates, 1974.