TY  - BOOK
AU  - Denslow Van Buren Au.
AU  -  Parker Jane Marsh Au.
TI  - World's workers Thomas A Edison and Samuel F B Morse
U1  - D66wM47, B7 
PY  - 1887///
CY  - Londan
PB  - Cassell and company Limited UK   
KW  - ENGINEERING
ER  -