APA (7th ed.) Citation

Altrichter, H., Posch, P., & Somekh, B. (1993). Teachers investigate their work: An introduction to the methods of action research. Routledge.

Chicago Style (17th ed.) Citation

Altrichter, Herbert, Peter Posch, and Bridget Somekh. Teachers Investigate Their Work: An Introduction to the Methods of Action Research. London: Routledge, 1993.

MLA (9th ed.) Citation

Altrichter, Herbert, et al. Teachers Investigate Their Work: An Introduction to the Methods of Action Research. Routledge, 1993.