TY  - BOOK
AU  - DIXON,Franklin W
TI  - The Hardy Boys 110: : The Secret Of Sigma Seven 
SN  - 0-671-72717-6
U1  - 823. 
PY  - 1991///
CY  - New York
PB  - Pocket Books
KW  - 0
KW  - Grade 10-12
ER  -