Dyfyniad APA

Thompson, A. A. (1973). Economics of the firn: Theory and practice. Prentice-Hall.

Dyfyniad Arddull Chicago

Thompson, Arthur A. Economics of the Firn: Theory and Practice. Englewood: Prentice-Hall, 1973.

Dyfyniad MLA

Thompson, Arthur A. Economics of the Firn: Theory and Practice. Prentice-Hall, 1973.

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