APA (7. basım) Alıntı

Walford, A. J. (1987). Guide to reference material (4th ed.). Library Association.

Chicago Style (17. basım) Atıf

Walford, Albert John. Guide to Reference Material. 4th ed. London: Library Association, 1987.

MLA (9th ed.) Atıf

Walford, Albert John. Guide to Reference Material. 4th ed. Library Association, 1987.