Cita APA (7a ed.)

Allen, C. G. (1978). A manual of European languages for librarians (3rd ed.). Bowker.

Cita Chicago Style (17a ed.)

Allen, Charles Geoffry. A Manual of European Languages for Librarians. 3rd ed. London: Bowker, 1978.

Cita MLA (9a ed.)

Allen, Charles Geoffry. A Manual of European Languages for Librarians. 3rd ed. Bowker, 1978.