000
00455nam a22001937a 4500
015
_a
185
041
_a
1
080
_a
666.9
_b
GON
100
_a
Gonnerman, H.F.
245
_a
Air entrainment in concrete
260
_a
American Concrete Institute
_b
Michigan
_c
1947
300
_a
568p.
_b
fig.
650
_a
Agriculture
852
_a
No
999
_c
100
_d
100