TY  - BOOK
AU  - Levin, Oscar.
TI  - Discrete mathematics : : an open introduction 
SN  - 9781792901690
AV  - QA39.3 .L4856 2023
PY  - 2021///
CY  - Great Britain
PB  - Amazon
KW  - Mathematics
N1  - Includes index
ER  -