e-libro, Corp, Pérez Feijoo, H. M., & Sanchís Martín, M. V. (2013). Communication & customer service: Advanced vocational training. McGraw-Hill/Interamericana de España.
Citace podle Chicago (17th ed.)e-libro, Corp, Héctor Marcos Pérez Feijoo, a María Vicenta Sanchís Martín. Communication & Customer Service: Advanced Vocational Training. Aravaca, Madrid: McGraw-Hill/Interamericana de España, 2013.
Citace podle MLA (9th ed.)e-libro, Corp, et al. Communication & Customer Service: Advanced Vocational Training. McGraw-Hill/Interamericana de España, 2013.
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