Dyfyniad APA

Jackson, A. R. W. (1996). Environmetal science: The natural environment and human impact. London: Longman.

Dyfyniad Arddull Chicago

Jackson, Andrew R W. Environmetal Science: The Natural Environment and Human Impact. London: Longman, 1996.

Dyfyniad MLA

Jackson, Andrew R W. Environmetal Science: The Natural Environment and Human Impact. London: Longman, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.