APA引文

Stallard, H. B. (1950). A Rack for Ophthalmic Needles and Sutures.

Citação norma Chicago

Stallard, H. B. A Rack for Ophthalmic Needles and Sutures. 1950.

MLA引文

Stallard, H. B. A Rack for Ophthalmic Needles and Sutures. 1950.

警告：這些引文格式不一定是100％准確.