APA引文

Saunders, J. R. (1960). Abortion and Ergometrine.

Citação norma Chicago

Saunders, J. R. Abortion and Ergometrine. 1960.

MLA引文

Saunders, J. R. Abortion and Ergometrine. 1960.

警告：這些引文格式不一定是100％准確.