APA (7th ed.) Citation

MATTEONI, L. [. a. (1984). Winterfall: The keytext program. The Economy Company.

Chicago Style (17th ed.) Citation

MATTEONI, Louise [et al]. Winterfall: The Keytext Program. Oklahoma City: The Economy Company, 1984.

MLA (9th ed.) Citation

MATTEONI, Louise [et al]. Winterfall: The Keytext Program. The Economy Company, 1984.