APA (7th ed.) Citation

Gray, B. (1969). Style; the problem and it's solution. Mouton.

Chicago Style (17th ed.) Citation

Gray, Bennison. Style; the Problem and It's Solution. The Hague: Mouton, 1969.

MLA (9th ed.) Citation

Gray, Bennison. Style; the Problem and It's Solution. Mouton, 1969.