(1990). Habitats and environments. Marshall Cavendish.
Chicago-čujuhus (17. p.)Habitats and Environments. New York: Marshall Cavendish, 1990.
MLA-čujuhus (9. p.)Habitats and Environments. Marshall Cavendish, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.