Murray Brian Edwin Anthony, Piskorski Piotr, & Worcester Polytechnic Institute. Reduce, reuse, recycle.
Chicago-čujuhus (17. p.)Murray Brian Edwin Anthony, Piskorski Piotr, juo Worcester Polytechnic Institute. Reduce, Reuse, Recycle.
MLA-čujuhus (9. p.)Murray Brian Edwin Anthony, et al. Reduce, Reuse, Recycle.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.