TY  - BOOK
AU  - Comfort, Mildred H.
TI  - Herbert Hoover: Boy engineer 
U1  - 813.54 
PY  - 1965///
CY  - New York
PB  - Bobbs-Merrill
KW  - Hoover, Herbert, 1874 - 1964
KW  - Biography
KW  - Juvenile literature
ER  -