APA

Ranis G., International Economic Association, . (1972). The Gap between rich and poor nations: proceedings of a conference held by the International Economic Association at Bled, Yugoslavia. London: Macmillan.

Chicago

Ranis Gustav, International Economic Association, . 1972. The Gap between rich and poor nations: proceedings of a conference held by the International Economic Association at Bled, Yugoslavia. London: Macmillan.

Harvard

Ranis G., International Economic Association, . (1972). The Gap between rich and poor nations: proceedings of a conference held by the International Economic Association at Bled, Yugoslavia. London: Macmillan.

MLA

Ranis Gustav, International Economic Association, . The Gap between rich and poor nations: proceedings of a conference held by the International Economic Association at Bled, Yugoslavia. London: Macmillan. 1972.