Dyfyniad APA

Boulding, K. (1970). Economics as a Science. McGraw-Hill.

Dyfyniad Arddull Chicago

Boulding, Kenneth. Economics as a Science. New York: McGraw-Hill, 1970.

Dyfyniad MLA

Boulding, Kenneth. Economics as a Science. McGraw-Hill, 1970.

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