MLA

Groza, Mark D, and Charles B Ragland. Marketing Challenges In a Turbulent Business Environment. Springer International Publishing, 2016.

APA

Groza, M. D, & Ragland, C. B. (2016). Marketing Challenges in a Turbulent Business Environment. Springer International Publishing.

Chicago

Groza, Mark D., and Charles B Ragland. Marketing Challenges In a Turbulent Business Environment. : Springer International Publishing, 2016.