APA (7th ed.) Citation

Heny, F., & Richards, B. (1983). Linguistic categories: Auxiliaries and related puzzles. D. Reidel Publishing Company.

Chicago Style (17th ed.) Citation

Heny, Frank, and Barry Richards. Linguistic Categories: Auxiliaries and Related Puzzles. Dordrecht: D. Reidel Publishing Company, 1983.

MLA (8th ed.) Citation

Heny, Frank, and Barry Richards. Linguistic Categories: Auxiliaries and Related Puzzles. D. Reidel Publishing Company, 1983.