TY  - BOOK
AU  - Protheroe,W.M.
AU  - Capriotti, E. R. 
AU  - Newsom, G. H.
TI  - Astronomy : : a multimedia program 
U1  - 520 23
PY  - 1976///
CY  - Columbus : 
PB  - C.E. Merrill
KW  - Astronomy.
N1  - Includes index
ER  -