APA (7th ed.) Citation

Flesch, R. F. (1977). Look it up: A deskbook of American spelling and style. Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Flesch, Rudolf Franz. Look It Up: A Deskbook of American Spelling and Style. London [etc.]: Routledge and Kegan Paul, 1977.

MLA (8th ed.) Citation

Flesch, Rudolf Franz. Look It Up: A Deskbook of American Spelling and Style. Routledge and Kegan Paul, 1977.

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