APA citiranje

Gong, D., Liu, Y., Zheng, Z., Tian, Y., & Li, Z. (2009). An overview on ethical issues about sperm donation. Nature Publishing Group.

Citação norma Chicago

Gong, Dan, Yu-Lin Liu, Zhong Zheng, Yi-Fei Tian, and Zheng Li. An Overview On Ethical Issues About Sperm Donation. Nature Publishing Group, 2009.

MLA citiranje

Gong, Dan, et al. An Overview On Ethical Issues About Sperm Donation. Nature Publishing Group, 2009.