TY  - BOOK
AU  - Welsh, D. J. A.
TI  -  Matroid theory
SN  - 012744050X
U1  - 511/.6 
PY  - 1976///
CY  - London,  New York
PB  - Academic Press
KW  - Matroids
N1  - Includes bibliographical references p. (402-423) and index
ER  -