American Library Association, American Library Association, American Library Association. Conference, & American Library Association. ALA bulletin. American Library Association.
Dyfyniad Arddull ChicagoAmerican Library Association, American Library Association, American Library Association. Conference, and American Library Association. ALA Bulletin. [Chicago]: American Library Association.
Dyfyniad MLAAmerican Library Association, et al. ALA Bulletin. American Library Association.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.