APA (7th ed.) Citation

Le Page, R. B. (1971). The national language question: Linguistic problems of newly independent states. Oxford University Press.

Chicago Style (17th ed.) Citation

Le Page, R. B. The National Language Question: Linguistic Problems of Newly Independent States. London [etc.]: Oxford University Press, 1971.

MLA (9th ed.) Citation

Le Page, R. B. The National Language Question: Linguistic Problems of Newly Independent States. Oxford University Press, 1971.

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