Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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