00714nam a2200217Ia 4500 CTU_135613 210402s9999 xx 000 0 und d 75 025.524 I.34 Implementing digital reference : Setting standards and making it real Edited by R. David Lankes ... [et al.]. New York Neal-Schuman 2001 Electronic reference services,Electronic reference services,Electronic reference services Management,Evaluation United States,United States,United States Bạch Trúc Trung tâm Học liệu Trường Đại học Cần Thơ