Cita APA (7th ed.)

Abril, M. (1978). 55 1/2 classical guitar solos. Shattinger International Music Corp.

Cita Chicago (17th ed.)

Abril, Mario. 55 1/2 Classical Guitar Solos. New York: Shattinger International Music Corp, 1978.

Cita MLA (9th ed.)

Abril, Mario. 55 1/2 Classical Guitar Solos. Shattinger International Music Corp, 1978.