Dyfyniad APA

Hamilton, R. S., & Harrison, R. M. (1991). Highway pollution. Elseiver Distributors for the United States and Canada, Elsevier Science Pub. Co.

Dyfyniad Arddull Chicago

Hamilton, Ronald S., and Roy M. Harrison. Highway Pollution. Amsterdam, New York, New York, NY, U.S.A: Elseiver Distributors for the United States and Canada, Elsevier Science Pub. Co, 1991.

Dyfyniad MLA

Hamilton, Ronald S., and Roy M. Harrison. Highway Pollution. Elseiver Distributors for the United States and Canada, Elsevier Science Pub. Co, 1991.

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