TY  - BOOK
AU  - Duke, Daniel Linden.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : an introduction 
SN  - 75571935
SN  - 2
PY  - 1990///];copyright 1990.46
CY  - New York
PB  - McGraw-Hill
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
N1  - Includes index; Bibliography: p. 313-319; 5
ER  -