000 00480nmm a2200133Ia 4500
008 240103s9999||||xx |||||||||||||||||und||
020 _a9781470400125 (online)
100 _aBrown, William G.
245 0 _aOn the enumeration of non-planar maps
260 _aProvidence, R.I. :
_bAmerican Mathematical Society,
_c1966
300 _a1 online resource (42 p. : ill.)
490 _aMemoirs of the American Mathematical Society,
_x1947-6221 ;
856 _uhttp://www.ams.org/memo/0065
999 _c34076
_d34076