000
00283pam a2200109a 44500
082
_a
TR
_b
NBS-374
100
_a
E. Francis Washer
245
1
_a
Method for determining the resolving power of photographic lenses
260
_a
_b
_c
700
_a
C. Irvine Gardner
997
_a
TR4225 C
999
_c
405124
_d
405124