APA (7th ed.) Citation

Husen, T., & Postlethwaite, T. N. (1989). The International encyclopedia of education. Pergamon.

Chicago Style (17th ed.) Citation

Husen, Torsten, and T. Neville Postlethwaite. The International Encyclopedia of Education. [Oxford, England]: Pergamon, 1989.

MLA (9th ed.) Citation

Husen, Torsten, and T. Neville Postlethwaite. The International Encyclopedia of Education. Pergamon, 1989.