APA (7th ed.) Citation

Crystal, D. (1992). An encyclopedic dictionary of language and languages. Blackwell Publishers.

Chicago Style (17th ed.) Citation

Crystal, David. An Encyclopedic Dictionary of Language and Languages. Oxford, UK ; Cambridge, MA: Blackwell Publishers, 1992.

MLA (9th ed.) Citation

Crystal, David. An Encyclopedic Dictionary of Language and Languages. Blackwell Publishers, 1992.

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