APA (7th ed.) Citation

Kettunen, P., & Turunen, I. (1994). The middle class, knowledge and the idea of the third factor.

Chicago Style (17th ed.) Citation

Kettunen, Pauli, and Ilkka Turunen. The Middle Class, Knowledge and the Idea of the Third Factor. 1994.

MLA (9th ed.) Citation

Kettunen, Pauli, and Ilkka Turunen. The Middle Class, Knowledge and the Idea of the Third Factor. 1994.

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