Cita APA (7th ed.)

Leftwich, R. H. (1982). Economics of social issues. Business Pub.

Cita Chicago (17th ed.)

Leftwich, Richard H. Economics of Social Issues. Planto: Business Pub, 1982.

Cita MLA (9th ed.)

Leftwich, Richard H. Economics of Social Issues. Business Pub, 1982.