Lua APA (7ú heag.)

KAMIN MAXINE. (2006). CUSTOMER SERVICE TRAINING (1ST.). PERGAMON FLEXIBLE LEARNING.

Lua i Stíl Chicago (17ú heag.)

KAMIN MAXINE. CUSTOMER SERVICE TRAINING. 1ST. OXFORD: PERGAMON FLEXIBLE LEARNING, 2006.

Lua MLA (9ú heag.)

KAMIN MAXINE. CUSTOMER SERVICE TRAINING. 1ST. PERGAMON FLEXIBLE LEARNING, 2006.

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