Cita APA (7a ed.)

Allen, M., Gillespie, R., & Tellejohn Hayes, P. Essential thechnique 2000: For strings a comprehensive string method.

Cita Chicago Style (17a ed.)

Allen, Michael, Robert Gillespie, y Pamela Tellejohn Hayes. Essential Thechnique 2000: For Strings a Comprehensive String Method.

Cita MLA (8a ed.)

Allen, Michael, et al. Essential Thechnique 2000: For Strings a Comprehensive String Method.