Παραπομπή APA

Ghallagher, R. S. (2012). What to say to a porcupine: 20 humorous tales that get to the heart of great customer service (1.). BPI india pvt ltd.

Παραπομπή Chicago Style

Ghallagher, Richard S. What to Say to a Porcupine: 20 Humorous Tales That Get to the Heart of Great Customer Service. 1. Newdelhi: BPI india pvt ltd, 2012.

Παραπομπή MLA

Ghallagher, Richard S. What to Say to a Porcupine: 20 Humorous Tales That Get to the Heart of Great Customer Service. 1. BPI india pvt ltd, 2012.