000
00260nam a2200109 4500
008
160616s 000 0
245
_a
Proof techniques in graph theory
100
_a
Harary, Frank
500
_a
B13:6 K9
942
_c
BK
_2
BK5103
080
_a
519.17 HAR
999
_c
5103
_d
5103