APA-čujuhus (7. p.)

BILAS, R. A. (1971). Problems in microeconomics. McGraw-Hill.

Chicago-čujuhus (17. p.)

BILAS, Richard A. Problems in Microeconomics. New York: McGraw-Hill, 1971.

MLA-čujuhus (9. p.)

BILAS, Richard A. Problems in Microeconomics. McGraw-Hill, 1971.

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