Altrichter, H., Posch, P., & Somekh, B. (1993). Teachers investigate their work: An introduction to the methods of action research. Routledge.
Παραπομπή σε μορφή Chicago (17η εκδ.)Altrichter, Herbert, Peter Posch, και Bridget Somekh. Teachers Investigate Their Work: An Introduction to the Methods of Action Research. London: Routledge, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)Altrichter, Herbert, et al. Teachers Investigate Their Work: An Introduction to the Methods of Action Research. Routledge, 1993.
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