Dyfyniad APA

HARRIS, D. P. (1974). Testing english a second language. McGraw-Hill.

Dyfyniad Arddull Chicago

HARRIS, David P. Testing English a Second Language. Bombay: McGraw-Hill, 1974.

Dyfyniad MLA

HARRIS, David P. Testing English a Second Language. McGraw-Hill, 1974.

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