Dyfyniad APA

Parks, R. D. (1957). Examination and valuation of mineral property. Massachusetts: Addison-Wesley.

Dyfyniad Arddull Chicago

Parks, Roland D. Examination and Valuation of Mineral Property. Massachusetts: Addison-Wesley, 1957.

Dyfyniad MLA

Parks, Roland D. Examination and Valuation of Mineral Property. Massachusetts: Addison-Wesley, 1957.

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