APA (7th ed.) Citation

Brown, A. (1999). Singapore English in a nutshell: An alphabetical description of its features. Federal Publications.

Chicago Style (17th ed.) Citation

Brown, Adam. Singapore English in a Nutshell: An Alphabetical Description of Its Features. Singapore: Federal Publications, 1999.

MLA (9th ed.) Citation

Brown, Adam. Singapore English in a Nutshell: An Alphabetical Description of Its Features. Federal Publications, 1999.