American Library Association, Gorman, M., & Winkler, P. W. (1978). Anglo-American cataloguing rules (2d ed.). ALA.
Dyfyniad Arddull ChicagoAmerican Library Association, Michael Gorman, and Paul W. Winkler. Anglo-American Cataloguing Rules. 2d ed. Chicago: ALA, 1978.
Dyfyniad MLAAmerican Library Association, et al. Anglo-American Cataloguing Rules. 2d ed. ALA, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.