Gaya APA

Atrichter, H., Posch, P. (1993). Teachers investigate their work : an introduction to the methods of action research / Herbert Altrichter, Peter Posch dan Bridget Somekh . : Routledge.

Gaya MLA

Atrichter, Herbert., Posch, Peter.. "Teachers investigate their work : an introduction to the methods of action research / Herbert Altrichter, Peter Posch dan Bridget Somekh". : Routledge, 1993. Buku.