American Library Association. Reference and Adult Services Division, American Library Association. Reference Services Division, & Reference and User Services Association. RQ. Reference and User Services Association [etc.].
Dyfyniad Arddull ChicagoAmerican Library Association. Reference and Adult Services Division, American Library Association. Reference Services Division, and Reference and User Services Association. RQ. [Chicago, etc.]: Reference and User Services Association [etc.].
Dyfyniad MLAAmerican Library Association. Reference and Adult Services Division, et al. RQ. Reference and User Services Association [etc.].
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.