Library Association, Walford, A. J., Mullay, M., & Schlicke, P. (1999). Walford's guide to reference materials. Library Association Pub.
芝加哥风格引文Library Association, A. J. Walford, Marilyn Mullay, 与 Priscilla Schlicke. Walford's Guide to Reference Materials. London: Library Association Pub, 1999.
MLA引文Library Association, et al. Walford's Guide to Reference Materials. Library Association Pub, 1999.
警告：这些引文格式不一定是100％准确.