APA (7th ed.) Citation

Schur, N. W. (1990). 1000 Most obscure words. Facts on File.

Chicago Style (17th ed.) Citation

Schur, Norman W. 1000 Most Obscure Words. Facts on File, 1990.

MLA (8th ed.) Citation

Schur, Norman W. 1000 Most Obscure Words. Facts on File, 1990.

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