APA (7th ed.) Citation

(1981). The Plato system and language study. Language Learning Laboratory, Univ. of Illinois.

Chicago Style (17th ed.) Citation

The Plato System and Language Study. Urbana: Language Learning Laboratory, Univ. of Illinois, 1981.

MLA (9th ed.) Citation

The Plato System and Language Study. Language Learning Laboratory, Univ. of Illinois, 1981.

Warning: These citations may not always be 100% accurate.