APA (7th ed.) Citation

Pea, R. D. (1977). The Development of Truth-Functional Language: 1 1/2 - 3 Years.

Chicago Style (17th ed.) Citation

Pea, Roy D. The Development of Truth-Functional Language: 1 1/2 - 3 Years. 1977.

MLA (9th ed.) Citation

Pea, Roy D. The Development of Truth-Functional Language: 1 1/2 - 3 Years. 1977.

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