APA-Zitierstil (7. Ausg.)

(1992). Walford's concise guide to reference material (2. ed.). Library Assoc.

Chicago-Zitierstil (17. Ausg.)

Walford's Concise Guide to Reference Material. 2. ed. London: Library Assoc, 1992.

MLA-Zitierstil (9. Ausg.)

Walford's Concise Guide to Reference Material. 2. ed. Library Assoc, 1992.