APA aipamena

PARASURAMAN A. (1991). MARKETING RESEARCH (2ND.). ADDISON-WESLEY.

Chicago Style aipamena

PARASURAMAN A. MARKETING RESEARCH. 2ND. NEW DELHI: ADDISON-WESLEY, 1991.

MLA aipamena

PARASURAMAN A. MARKETING RESEARCH. 2ND. ADDISON-WESLEY, 1991.