APA-čujuhus (7. p.)
Bierman, H. (2011). Improving competitiveness of industry. World Scientific.
Chicago-čujuhus (17. p.)
Bierman, Harold. Improving Competitiveness of Industry. Singapore: World Scientific, 2011.
MLA-čujuhus (9. p.)
Bierman, Harold. Improving Competitiveness of Industry. World Scientific, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.