Discrete mathematics /
Johnsonbaugh, Richard
Discrete mathematics / Richard Johnsonbaugh - [Place of publication not identifed] : [publisher not identified], c2006
QA 39.2 .J65 2006
Discrete mathematics / Richard Johnsonbaugh - [Place of publication not identifed] : [publisher not identified], c2006
QA 39.2 .J65 2006