AU  - Matteoni, Louise
AU  - Wilson H. Lane
AU  - Floyd Sucher
AU  - Thomas D. Yawkey
TI  - Worldwind: The keytext program 
SN  - 0833221795
U1  - 428.2 MAT 
PY  - 1982///
CY  - U.S.A.
PB  - The Economy Company
KW  - Standard English usage
KW  - İngilizce'nin kullanımı
N1  - Includes glossary. (175-181 p.)
ER  -