Цитирование APA (7-е изд.)
Roberts-Phelps, G. (2001). Customer relationship management: How to turn a good business into a great one! Hawksmere.
Цитирование в стиле Чикаго (17-е изд.)
Roberts-Phelps, Graham. Customer Relationship Management: How to Turn a Good Business into a Great One! London: Hawksmere, 2001.
Цитирование MLA (9-е изд.)
Roberts-Phelps, Graham. Customer Relationship Management: How to Turn a Good Business into a Great One! Hawksmere, 2001.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.