APA ציטוט

Robinson, B. (1989). Focus: An ESL grammar. New York: St. Martin's Press.

Trích dẫn kiểu Chicago

Robinson, Barbara. Focus: An ESL Grammar. New York: St. Martin's Press, 1989.

ציטוט MLA

Robinson, Barbara. Focus: An ESL Grammar. New York: St. Martin's Press, 1989.