000
00366nam a2200109Ia 45e0
008
181001s1977 xx 000 0 und d
100
_a
World watch paper
245
0
_a
No. 11 energy the solar prospect
260
_a
Washington
_b
Massachnsetts Avvenue
_c
1977
300
_a
79
942
_2
ddc
_c
BK
999
_c
4609
_d
4609