Chalcraft, A., Prytherch, R. J., & Willis, S. (1989). Walford's guide to reference material (5th ed.). Library Association.
Style de citation Chicago (17e éd.)Chalcraft, Anthony, Raymond John Prytherch, et Stephen Willis. Walford's Guide to Reference Material. 5th ed. London: Library Association, 1989.
Style de citation MLA (9e éd.)Chalcraft, Anthony, et al. Walford's Guide to Reference Material. 5th ed. Library Association, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.