TY  - DATA
AU  - Brown, William G.
TI  - On the enumeration of non-planar maps 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470400125 (online)
PY  - 1966///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0065
ER  -