| Type |  Book |
| ชื่อเรื่อง | Virtual reference services : issues and trends / Stacey Kimmel, Jennifer Heise, guest editors |
| ISBN | 0789020440 (alk. paper) |
| | 0789020459 (pbk. : alk. paper) |
| | 9780789020444 (alk. paper) |
| | 9780789020451 (pbk. : alk. paper) |
| พิมพลักษณ์ | Binghamton, NY : Haworth Information Press, 2003 |
| รูปเล่ม | 194 p. : ill. ; 23 cm |
| หัวเรื่อง | Electronic reference services (Libraries) |
| | Electronic reference services (Libraries) --United States --Case studies [] |
| | Internet in library reference services |
| | Reference services (Libraries) --Information technology [] |