TY  - BOOK
AU  - Petrie A. Roy
TI  - Alexander Graham Bell
SN  - 978 1 550 41463 9
U1  - 621 385092 PET 
PY  - 1999///
CY  - Canada 
PB  -  Fitzhenry & Whiteside
KW  - INVENTORS UNITED STATES BIOGRAPHY
ER  -