Cita APA

Langridge, D. W. (1989). Subject analysis: Principles and procedures. Bowker-Saur.

Citación estilo Chicago

Langridge, Derek Wilton. Subject Analysis: Principles and Procedures. London ; Munich u.a.: Bowker-Saur, 1989.

Cita MLA

Langridge, Derek Wilton. Subject Analysis: Principles and Procedures. Bowker-Saur, 1989.