Reference and information services An introduction /

由 Bopp, Richard E.
出版 2001

Reference information services /

由 Bopp, Richard E.
出版 2005

Reference and information services An introduction /

由 Bopp, Richard E.
出版 2011

Reference and information services An introduction /

由 Bopp, Richard E.
出版 2005

Reference and information services introduction

由 Bopp, Richard E; ed
出版 2011

Reference and information services: an introduction

由 Bopp, Richard E; Editor, Smith, Linda C; Editor
出版 2005

Reference and information services: an introduction

由 Bopp, Richard E; Editor, Smith, Linda C; Editor
出版 2005

Reference and information services: An introduction /

出版 2005

Reference and information services: an Introduction

出版 2001