Gaya APA

Wright, C, H, L, L, K. (1999). Principles of Service Marketing and Management (International Edition). United States of America: Prentice-Hall, Inc..

Gaya MLA

Wright, Cristopher, H., Lovelock,, Lauren, K.. "Principles of Service Marketing and Management". International Edition United States of America: Prentice-Hall, Inc., 1999. Text.