@BOOK{ Book!D - 89978705,
AUTHOR = " Jia Liu.",
TITLE = "The evaluation of worldwide digital reference services in libraries /",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Electronic reference services (Libraries)-- Evaluation.",
URL = "/book/89978705/The-evaluation-of-worldwide-digital-reference-serv/"}