Modak, P. (2021). Practicing circular economy (First edition.). CRC Press, Taylor & Francis Group.
Chicago-čujuhus (17. p.)Modak, Prasad. Practicing Circular Economy. First edition. Boca Raton: CRC Press, Taylor & Francis Group, 2021.
MLA-čujuhus (9. p.)Modak, Prasad. Practicing Circular Economy. First edition. CRC Press, Taylor & Francis Group, 2021.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.