APA (7th ed.) Citation

Hunsinger, P., Ecroyd, D. H., & Hanna, M. S. (1975). Using words effectively. National Textbook.

Chicago Style (17th ed.) Citation

Hunsinger, Paul, Donald H. Ecroyd, and Michael S. Hanna. Using Words Effectively. Skokie, Ill.: National Textbook, 1975.

MLA (9th ed.) Citation

Hunsinger, Paul, et al. Using Words Effectively. National Textbook, 1975.