TY  - BOOK
AU  - Tadeusz Dudycz, Gra?yna Osbert-Pociecha, Bogumi?a Brycz
TI  - Efficiency in Business and Economics
SN  - 9783319682853
PB  - Springer
UR  - https://link.springer.com/openurl?genre=book&isbn=978-3-319-68285-3
ER  -