APA引文

Sequeira Ortiz, Z. (1980). Services to users: The retrieval of information and documentary languages.

Citación estilo Chicago

Sequeira Ortiz, Zaida. Services to Users: The Retrieval of Information and Documentary Languages. 1980.

MLA引文

Sequeira Ortiz, Zaida. Services to Users: The Retrieval of Information and Documentary Languages. 1980.

警告：這些引文格式不一定是100％准確.