000
00257 a2200109 4500
008
190227b xxu||||| |||| 00| 0
100
_a
Allen, J.
245
_a
Scale models hydraulic engineering /
_c
J. Allen
260
_c
1947
300
_a
150p.
942
_2
ddc
_c
BK
999
_c
9264
_d
9264