Dyfyniad APA

e-libro, Corp, Pérez Feijoo, H. M., & Sanchís Martín, M. V. (2013). Communication & customer service: Advanced vocational training. McGraw-Hill/Interamericana de España.

Dyfyniad Arddull Chicago

e-libro, Corp, Héctor Marcos Pérez Feijoo, and María Vicenta Sanchís Martín. Communication & Customer Service: Advanced Vocational Training. Aravaca, Madrid: McGraw-Hill/Interamericana de España, 2013.

Dyfyniad MLA

e-libro, Corp, et al. Communication & Customer Service: Advanced Vocational Training. McGraw-Hill/Interamericana de España, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.