APA (7th ed.) Citation

Harel, I., & Papert, S. (1991). Constructionism. Ablex Pub. Corp..

Chicago Style (17th ed.) Citation

Harel, Idit, and Seymour Papert. Constructionism. Norwood, N.J.: Ablex Pub. Corp., 1991.

MLA (8th ed.) Citation

Harel, Idit, and Seymour Papert. Constructionism. Ablex Pub. Corp., 1991.

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