TY  - GEN
AU  - Sharkey W.W.
AU  - Sharkey W.W.
ED  - Economic  development;Monopolies;World - Economy;Commerce, com/tions, transport
TI  - The Theory of Natural  Monopoly
SN  - 521271940
CY  - -Cambridge
KW  - The Theory of Natural  Monopoly
ER  -