The apeman's secret /
Franklin W. Dixon
- New York : Grosset & Dunlap, 1980
- 184 p. : ill. ; 20 cm.
- Hardy boys mystery stories ; 62 .
- Dixon, Franklin W. Hardy boys mystery stories ; 62 .
- Hardy boys mystery stories ; 62 .
044843699X (hbk.)
Hardy boys (Fictitious characters)--Fiction Detective and mystery stories, American