Cita APA (7th ed.)

Bartlett, D. (1994). The direct option. Texas A & M University Press.

Cita Chicago (17th ed.)

Bartlett, Dick. The Direct Option. College Station: Texas A & M University Press, 1994.

Cita MLA (9th ed.)

Bartlett, Dick. The Direct Option. Texas A & M University Press, 1994.