Buttle, F. (2009). Customer relationship management: Concepts and technologies (2nd ed.). Routledge.
Chicago-стиль цитированияButtle, Francis. Customer Relationship Management: Concepts and Technologies. 2nd ed. New York: Routledge, 2009.
MLA-цитированиеButtle, Francis. Customer Relationship Management: Concepts and Technologies. 2nd ed. Routledge, 2009.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.