Gaya APA
BUTTLE, F., MAKLAN, S. (2019).
CUSTOMER RELATIONSHIP MANAGEMENT: CONCEPTS AND TECHNOLOGIES .
OXON:
ROUTLEDGE.
Gaya MLA
BUTTLE, FRANCIS., MAKLAN, STAN.
"CUSTOMER RELATIONSHIP MANAGEMENT: CONCEPTS AND TECHNOLOGIES".
OXON:
ROUTLEDGE,
2019.
Text.