Evaluating reference services :
Whitlatch, Jo Bell.
Evaluating reference services : a practical guide / Jo Bell Whitlatch. - 1a. - Chicago : American Library Association, 2000. - vi, 225 p. : il. ; 23 cm.
0838907873
Reference services (Libraries)--Evaluation.
Evaluating reference services : a practical guide / Jo Bell Whitlatch. - 1a. - Chicago : American Library Association, 2000. - vi, 225 p. : il. ; 23 cm.
0838907873
Reference services (Libraries)--Evaluation.
