APA (7th ed.) Citation

Troike, R. C. (1990). General and Indo-European Languages of Europe.

Chicago Style (17th ed.) Citation

Troike, Rudolph C. General and Indo-European Languages of Europe. 1990.

MLA (9th ed.) Citation

Troike, Rudolph C. General and Indo-European Languages of Europe. 1990.

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