APA (7 ম সংস্করণ) উদ্ধৃতি

Gallagher, R. S. (2008). What to say to a porcupine: 20 humorous tales that get to the heart of great customer service. American Management Association.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Gallagher, Richard S. What to Say to a Porcupine: 20 Humorous Tales That Get to the Heart of Great Customer Service. New York: American Management Association, 2008.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Gallagher, Richard S. What to Say to a Porcupine: 20 Humorous Tales That Get to the Heart of Great Customer Service. American Management Association, 2008.