TY  - DATA
AU  - Herbert, Ralph J.
TI  - Multiple points of immersed manifolds 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470406578 (online)
PY  - 1981///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0250
ER  -