Tadeusz Dudycz, Gra?yna Osbert-Pociecha, Bogumi?a Brycz <br/><br/>
Efficiency in Business and Economics 

 -  Springer  Springer  2018 
<br/><br/><label>ISBN: </label>9783319682853 
<br/><br/><label>Source: </label>EBOOK