APA (7th ed.) Citation

Keller, A. R. (1970). A Phonological Study of the Indo-European Laryngeals.

Chicago Style (17th ed.) Citation

Keller, Allan R. A Phonological Study of the Indo-European Laryngeals. The Hague/Paris, 1970.

MLA (8th ed.) Citation

Keller, Allan R. A Phonological Study of the Indo-European Laryngeals. 1970.

Warning: These citations may not always be 100% accurate.