Gill, R. T. (1972). Economics and the public interest (2nd ed.). D. C. Heath and Company.
Citazione stile Chigago Style (17a edizione)Gill, Richard T. Economics and the Public Interest. 2nd ed. South Scituate, Mass.: D. C. Heath and Company, 1972.
Citatione MLA (9a ed.)Gill, Richard T. Economics and the Public Interest. 2nd ed. D. C. Heath and Company, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.