Elkington, J., Hailes, J., & Makower, J. (1990). The green consumer. Penguin Books.
Chicago-čujuhus (17. p.)Elkington, John, Julia Hailes, juo Joel Makower. The Green Consumer. New York, N.Y., U.S.A.: Penguin Books, 1990.
MLA-čujuhus (9. p.)Elkington, John, et al. The Green Consumer. Penguin Books, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.