Dyfyniad APA

Letchford, S. (1977). Business mathematics and statistics (2nd.ed.). Donnington.

Dyfyniad Arddull Chicago

Letchford, S. Business Mathematics and Statistics. 2nd.ed. London: Donnington, 1977.

Dyfyniad MLA

Letchford, S. Business Mathematics and Statistics. 2nd.ed. Donnington, 1977.

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