APA (7th ed.) Citation

Zehler, A. M., & Brewer, W. F. (1980). Acquisition of the article system in English. University of Illinois at Urbana-Champaign.

Chicago Style (17th ed.) Citation

Zehler, Annette Marie, and William F. Brewer. Acquisition of the Article System in English. Champaign, Ill.: University of Illinois at Urbana-Champaign, 1980.

MLA (9th ed.) Citation

Zehler, Annette Marie, and William F. Brewer. Acquisition of the Article System in English. University of Illinois at Urbana-Champaign, 1980.