Chiras, D. D. (1985). Environmental science: A framework for decision making. The Benjamin/Cummings.
Dyfyniad Arddull ChicagoChiras, Daniel D. Environmental Science: A Framework for Decision Making. Menlo Park: The Benjamin/Cummings, 1985.
Dyfyniad MLAChiras, Daniel D. Environmental Science: A Framework for Decision Making. The Benjamin/Cummings, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.