MLA

Qin, Zheng, et al. Introduction to E-commerce. Springer Berlin Heidelberg, 2009.

APA

Qin, Z., Deng, W., Hao, Y., & Wang, G. (2009). Introduction to E-commerce. Springer Berlin Heidelberg.

Chicago

Qin, Zheng, Wanqiu Deng, Yanli Hao, and Guolong Wang. Introduction to E-Commerce. : Springer Berlin Heidelberg, 2009.