Goscinny, R., Sempé, J., & Agirre, R. (1985). Nikolas txiki-ren oporrak (2. argit.). Elkar.
Chicago Style (17th ed.) CitationGoscinny, René, Jean-Jacques Sempé, and Ramón Agirre. Nikolas Txiki-ren Oporrak. 2. argit. Donostia: Elkar, 1985.
MLA (9th ed.) CitationGoscinny, René, et al. Nikolas Txiki-ren Oporrak. 2. argit. Elkar, 1985.
Warning: These citations may not always be 100% accurate.