APA-čujuhus (7. p.)

Leftwich, R. H. (1976). Economics of social issues. Business.

Chicago-čujuhus (17. p.)

Leftwich, Richard H. Economics of Social Issues. Dallas: Business, 1976.

MLA-čujuhus (9. p.)

Leftwich, Richard H. Economics of Social Issues. Business, 1976.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.