000
00298nam a2200121 4500
008
160616s 000 0
245
_a
World of the electron microscope
100
_a
Wyckoff, Ralph W G
440
_a
Trends in science, 1
500
_a
C51 J81
942
_c
BK
_2
BK9274
080
_a
535 WYC
999
_c
9274
_d
9274