Gaya APA

Zook, C. et al (2012). E-book Repeatability: Build Enduring Businesses for a World of Constant Change . : Gildan Media, LLC.

Gaya MLA

Zook, Chris. et al. "E-book Repeatability: Build Enduring Businesses for a World of Constant Change". : Gildan Media, LLC, 2012. Text.