Chalcraft, A., Prytherch, R., & Willis, S. (1995). Walford's guide to reference material: Generalia,language and literature,the arts (6th ed.). Library association publishing.
Dyfyniad Arddull ChicagoChalcraft, Anthony, Ray Prytherch, and Stephen Willis. Walford's Guide to Reference Material: Generalia,language and Literature,the Arts. 6th ed. London: Library association publishing, 1995.
Dyfyniad MLAChalcraft, Anthony, et al. Walford's Guide to Reference Material: Generalia,language and Literature,the Arts. 6th ed. Library association publishing, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.