MLA

Zhang, Jianyong, Ya Hu, and Yongguang Li. Gel Chemistry. Springer Singapore, 2018.

APA

Zhang, J., Hu, Y., & Li, Y. (2018). Gel Chemistry. Springer Singapore.

Chicago

Zhang, Jianyong, Ya Hu, and Yongguang Li. Gel Chemistry. : Springer Singapore, 2018.