Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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