APA引文

Gillespie, D. (2007). Contraceptive Use and the Poor: A Matter of Choice? PLoS Medicine.

Citação norma Chicago

Gillespie, Duff. Contraceptive Use and the Poor: A Matter of Choice? PLoS Medicine, 2007.

MLA引文

Gillespie, Duff. Contraceptive Use and the Poor: A Matter of Choice? PLoS Medicine, 2007.

警告：這些引文格式不一定是100％准確.