TY  - BOOK
AU  - Williams,Marcia L.
AU  - Paprock,Kenneth
AU  - Covington,Barbara
TI  - Distance learning: the essential guide 
SN  - 0761914412
AV  - LC5805 W721 D 1999
PY  - 1999///
CY  - Thousand Oaks, Calif.
PB  - Sage
KW  - Distance education
KW  - United States
KW  - Telecommunication in education
N1  - HKBU library; YT2025 M08
ER  -