Dyfyniad APA

Blatt, H. (1998). Laboratory exercises in environmental geology. Boston, MA: McGraw-Hill.

Dyfyniad Arddull Chicago

Blatt, Harvey. Laboratory Exercises in Environmental Geology. Boston, MA: McGraw-Hill, 1998.

Dyfyniad MLA

Blatt, Harvey. Laboratory Exercises in Environmental Geology. Boston, MA: McGraw-Hill, 1998.

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