Dyfyniad APA

Strutt, P. (1998). Longman business english usage. London: Longman.

Dyfyniad Arddull Chicago

Strutt, Peter. Longman Business English Usage. London: Longman, 1998.

Dyfyniad MLA

Strutt, Peter. Longman Business English Usage. London: Longman, 1998.

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