APA citiranje

Zhang, Y., Li, C., Ning, M., Duan, X., & Liu, Y. (2013). Preparation and Evaluation of Intravaginal Ring Containing Drospirenone. Hindawi Publishing Corporation.

Citação norma Chicago

Zhang, Ying, Chun-Xiao Li, Mei-Ying Ning, Xue-Yan Duan, and Ying Liu. Preparation and Evaluation of Intravaginal Ring Containing Drospirenone. Hindawi Publishing Corporation, 2013.

MLA citiranje

Zhang, Ying, et al. Preparation and Evaluation of Intravaginal Ring Containing Drospirenone. Hindawi Publishing Corporation, 2013.