Cita APA (7th ed.)

Troutman, P. (1965). Velasquez (1a. ed.). Spring Books.

Cita Chicago (17th ed.)

Troutman, Philip. Velasquez. 1a. ed. Londres: Spring Books, 1965.

Cita MLA (9th ed.)

Troutman, Philip. Velasquez. 1a. ed. Spring Books, 1965.