Krajewski, L. J., & Ritzman, L. P. (2009). General environmental management. Pearson.
Chicago-čujuhus (17. p.)Krajewski, Lee J., juo Larry P. Ritzman. General Environmental Management. New Delhi: Pearson, 2009.
MLA-čujuhus (9. p.)Krajewski, Lee J., juo Larry P. Ritzman. General Environmental Management. Pearson, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.