Gaya APA

Byrne, Donn, Walsh, Gordon. (1977). Pronunciation practice student's workbook . London: Longman.

Gaya Chicago

Byrne, Donn, Walsh, Gordon. Pronunciation practice student's workbook. London: Longman, 1977. Text.

Gaya MLA

Byrne, Donn, Walsh, Gordon. Pronunciation practice student's workbook. London: Longman, 1977. Text.

Gaya Turabian

Byrne, Donn, Walsh, Gordon. Pronunciation practice student's workbook. London: Longman, 1977. Print.