TY  - BOOK
AU  - Ubbelohde,A.R.
TI  - Man and energy
T2  - Pelican books,
AV  - T14 .U2 1963
U1  - 621 
PY  - 1963///]
CY  - Baltimore
PB  - Penguin Books
KW  - Technology
KW  - Philosophy
ER  -