Library Association, Walford, A. J., Mullay, M., & Schlicke, P. (1999). Walford's guide to reference materials. Library Association Pub.
Chicago (17e ed.) BronvermeldingLibrary Association, A. J. Walford, Marilyn Mullay, en Priscilla Schlicke. Walford's Guide to Reference Materials. London: Library Association Pub, 1999.
MLA (9e ed.) BronvermeldingLibrary Association, et al. Walford's Guide to Reference Materials. Library Association Pub, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.