Cita APA (7th ed.)

Allen, M., Gillespie, R., & Hayes, P. T. (1994). Essential elements for strings: A comprehensive string method. Hal Leonard.

Cita Chicago (17th ed.)

Allen, Michael, Robert Gillespie, i Pamela Tellejohn Hayes. Essential Elements for Strings: A Comprehensive String Method. Milwaukee: Hal Leonard, 1994.

Cita MLA (9th ed.)

Allen, Michael, et al. Essential Elements for Strings: A Comprehensive String Method. Hal Leonard, 1994.