Cita APA (7th ed.)

Leftwich, R. H., & Sharp, A. M. (1984). Economics of social issues (6th ed.). Business Pub.

Cita Chicago (17th ed.)

Leftwich, Richard H., i Ansel M. Sharp. Economics of Social Issues. 6th ed. Plano, Texas: Business Pub, 1984.

Cita MLA (9th ed.)

Leftwich, Richard H., i Ansel M. Sharp. Economics of Social Issues. 6th ed. Business Pub, 1984.