Cita APA (7th ed.)

Shepherd, J. F. (1990). College study skills (4th ed.). Houghton-Mifflin.

Cita Chicago (17th ed.)

Shepherd, James F. College Study Skills. 4th ed. Boston: Houghton-Mifflin, 1990.

Cita MLA (9th ed.)

Shepherd, James F. College Study Skills. 4th ed. Houghton-Mifflin, 1990.