APA

Varian H. R., .A solution to the problem of ecternalities when agents are well-informed. : .

Chicago

Varian Hal R, .A solution to the problem of ecternalities when agents are well-informed. : .

Harvard

Varian H. R., .A solution to the problem of ecternalities when agents are well-informed. : .

MLA

Varian Hal R, .: . .