APA (7th ed.) Citation

PØrez Urroz, A., Bueno Heras, C., & PØrez LandÆburu, E. (1989). Herri bat bidean. SPx.

Chicago Style (17th ed.) Citation

PØrez Urroz, Alejandro, Carmelo Bueno Heras, and Encarnaciðn PØrez LandÆburu. Herri Bat Bidean. Madrid: SPx, 1989.

MLA (9th ed.) Citation

PØrez Urroz, Alejandro, et al. Herri Bat Bidean. SPx, 1989.