Baran, R. J. &. G. J. (2017). Customer Relationship Management: The Foundation of Contemporary Marketing Strategy. Cengage Learning India Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Baran, Roger J & Galka,Robert J. Customer Relationship Management: The Foundation of Contemporary Marketing Strategy. New Delhi: Cengage Learning India Pvt. Ltd, 2017.
Lua MLA (9ú heag.)Baran, Roger J & Galka,Robert J. Customer Relationship Management: The Foundation of Contemporary Marketing Strategy. Cengage Learning India Pvt. Ltd, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.