TY  - BOOK
AU  - Cotter,Robert J
ED  - Markus Matzner
TI  - Ring-forming polymerizations
T2  - original chemistry: a series of monographs ;13
U1  - 547.84 
PY  - 1969///-72
CY  - New York
PB  - Academic Press
N1  - pt.B.1: Heterocyclic rings.1972; pt.B: Hetero cyclic rings.1972
ER  -