APA aipamena

Sierra, J., Olaziregi, I., & Zalbide, M. (1991). EIFE 3: Influence of factors on the learning of basque : Study of the models A, B and D in second year Basic General Education / [egileak, Josu Sierra, Ibon Olaziregi ; hitzaurrea, Mikel Zalbide] (1. ed.). Gasteiz: : Eusko Jaurlaritzaren Argitalpen Zerbitzu Nagusia.

Chicago Style aipamena

Sierra, Josu, Ibon Olaziregi, and Mikel Zalbide. EIFE 3: Influence of Factors On the Learning of Basque : Study of the Models A, B and D in Second Year Basic General Education / [egileak, Josu Sierra, Ibon Olaziregi ; Hitzaurrea, Mikel Zalbide]. 1. ed. Gasteiz: : Eusko Jaurlaritzaren Argitalpen Zerbitzu Nagusia, 1991.

MLA aipamena

Sierra, Josu, Ibon Olaziregi, and Mikel Zalbide. EIFE 3: Influence of Factors On the Learning of Basque : Study of the Models A, B and D in Second Year Basic General Education / [egileak, Josu Sierra, Ibon Olaziregi ; Hitzaurrea, Mikel Zalbide]. 1. ed. Gasteiz: : Eusko Jaurlaritzaren Argitalpen Zerbitzu Nagusia, 1991.