APA

Yule (George), . (1997). The Study Of Language. Ed 2. : .

Chicago

Yule (George), . 1997. The Study Of Language. Ed 2. : .

Harvard

Yule (George), . (1997). The Study Of Language. Ed 2. : .

MLA

Yule (George), . The Study Of Language. Ed 2. : . 1997.