000
00308 a2200133 4500
020
_a
0335173381
082
_a
536
_b
OPE
090
_c
7355
_d
10231
245
_a
Block 1 heat
_b
living with technology
260
_a
Walton
_b
Open University
_c
1988
_g
1988
300
_a
36p.
_c
28cm.
650
_a
HEAT
942
_c
SR
999
_c
36067
_d
36067