Chiras, D. D. (1985). Environmental science: A framework for decision making. The Benjamin/Cummings.
Chicago-čujuhus (17. p.)Chiras, Daniel D. Environmental Science: A Framework for Decision Making. Menlo Park: The Benjamin/Cummings, 1985.
MLA-čujuhus (9. p.)Chiras, Daniel D. Environmental Science: A Framework for Decision Making. The Benjamin/Cummings, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.