APA citiranje

Burke, A. E., Barnhart, K., Jensen, J. T., Creinin, M. D., Walsh, T. L., Wan, L. S., . . . Blithe, D. (2010). A randomized trial of the contraceptive efficacy, acceptability, and safety of C31G and nonoxynol-9 spermicidal gels.

Citação norma Chicago

Burke, Anne E., et al. A Randomized Trial of the Contraceptive Efficacy, Acceptability, and Safety of C31G and Nonoxynol-9 Spermicidal Gels. 2010.

MLA citiranje

Burke, Anne E., et al. A Randomized Trial of the Contraceptive Efficacy, Acceptability, and Safety of C31G and Nonoxynol-9 Spermicidal Gels. 2010.