Cita APA (7th ed.)

Andújar, J. I. (1968). Mastering spanish verbs. Simon and Schuster.

Cita Chicago (17th ed.)

Andújar, Julio I. Mastering Spanish Verbs. Nueva York: Simon and Schuster, 1968.

Cita MLA (9th ed.)

Andújar, Julio I. Mastering Spanish Verbs. Simon and Schuster, 1968.