APA
Vavra T. G., . (1997). Improving your measurement of customer satisfaction : a guide to creating, conducting, analyzing, and reporting customer satisfaction measurement programs. Wheeler: New Delhi.
Chicago
Vavra Terry G, . 1997. Improving your measurement of customer satisfaction : a guide to creating, conducting, analyzing, and reporting customer satisfaction measurement programs. Wheeler: New Delhi.
Harvard
Vavra T. G., . (1997). Improving your measurement of customer satisfaction : a guide to creating, conducting, analyzing, and reporting customer satisfaction measurement programs. Wheeler: New Delhi.
MLA
Vavra Terry G, . Improving your measurement of customer satisfaction : a guide to creating, conducting, analyzing, and reporting customer satisfaction measurement programs. Wheeler: New Delhi. 1997.