Dyfyniad APA

Down. C.G & Stocks. J. (1977). Environmental Impact of Mining. Applied Science Publishers.

Dyfyniad Arddull Chicago

Down. C.G and Stocks. J. Environmental Impact of Mining. London: Applied Science Publishers, 1977.

Dyfyniad MLA

Down. C.G and Stocks. J. Environmental Impact of Mining. Applied Science Publishers, 1977.

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