APA

Stirling W. F., . (1960). An introduction to english phonetics for spanish-speakings students. London: Oxford university press.

Chicago

Stirling W F, . 1960. An introduction to english phonetics for spanish-speakings students. London: Oxford university press.

Harvard

Stirling W. F., . (1960). An introduction to english phonetics for spanish-speakings students. London: Oxford university press.

MLA

Stirling W F, . An introduction to english phonetics for spanish-speakings students. London: Oxford university press. 1960.