Dyfyniad APA

Bonnice, J. G. (1972). Introduction to economics and business enterprise. McGraw hill book.

Dyfyniad Arddull Chicago

Bonnice, Joseph G. Introduction to Economics and Business Enterprise. New York: McGraw hill book, 1972.

Dyfyniad MLA

Bonnice, Joseph G. Introduction to Economics and Business Enterprise. McGraw hill book, 1972.

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