APA引文

Barrantes Calderón, V. J. (2007). Some concerns about copyright protection on the Internet.

Citación estilo Chicago

Barrantes Calderón, Victor J. Some Concerns About Copyright Protection On the Internet. 2007.

MLA引文

Barrantes Calderón, Victor J. Some Concerns About Copyright Protection On the Internet. 2007.

警告：這些引文格式不一定是100％准確.