Cita APA (7a ed.)

Library Association. editor & Walford, A. (1970). Guide to reference material: 3, Generalities, languages, the arts and literature (2nd ed.). Library Association.

Cita Chicago Style (17a ed.)

Library Association. editor y A.J Walford. Guide to Reference Material: 3, Generalities, Languages, the Arts and Literature. 2nd ed. London: Library Association, 1970.

Cita MLA (9a ed.)

Library Association. editor y A.J Walford. Guide to Reference Material: 3, Generalities, Languages, the Arts and Literature. 2nd ed. Library Association, 1970.