 |
 |
|
|
|
|
: Beckmann Martin J
: Some Aspects of Returns to Scale in Business Administration : : 1960 : : The Quarterly Journal of Economics () : 3 : 74 : Martin J. Beckmann. Some Aspects of Returns to Scale in Business Administration // The Quarterly Journal of Economics, Vol. 74, No. 3. (Aug., 1960), pp. 464-471. : ( .. ) . , . . : ( ) : : / : / : () : 4844, : 571, : 1. |