Cita APA (7th ed.)

Sheftel, P. (1970). Exploring keyboard fundamentals. Holt, Rinehart.

Cita Chicago (17th ed.)

Sheftel, Paul. Exploring Keyboard Fundamentals. New York: Holt, Rinehart, 1970.

Cita MLA (9th ed.)

Sheftel, Paul. Exploring Keyboard Fundamentals. Holt, Rinehart, 1970.