Citazione Stile APA (7a Edizione)

Leftwich, R. H., & Sharp, A. M. (1982). Economics of social issues (5th ed.). Business Publications ; Irwin-Dorsey.

Citazione stile Chigago Style (17a edizione)

Leftwich, Richard H., e Ansel M. Sharp. Economics of Social Issues. 5th ed. Plano, Tex. : Georgetown, Ont.: Business Publications ; Irwin-Dorsey, 1982.

Citatione MLA (8a ed.)

Leftwich, Richard H., e Ansel M. Sharp. Economics of Social Issues. 5th ed. Business Publications ; Irwin-Dorsey, 1982.