APA (7 ম সংস্করণ) উদ্ধৃতি

Harden, L., & Heyman, B. (2009). Digital engagement: Internet marketing that captures customers and builds intense brand loyalty. American Management Association.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Harden, Leland, এবং Bob Heyman. Digital Engagement: Internet Marketing That Captures Customers and Builds Intense Brand Loyalty. New York: American Management Association, 2009.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Harden, Leland, এবং Bob Heyman. Digital Engagement: Internet Marketing That Captures Customers and Builds Intense Brand Loyalty. American Management Association, 2009.