APA (7th ed.) Citation

Beristáin, A. (1991). Heriotz zigorra. Gero.

Chicago Style (17th ed.) Citation

Beristáin, Antonio. "Heriotz Zigorra." Gero 1991.

MLA (9th ed.) Citation

Beristáin, Antonio. "Heriotz Zigorra." Gero, 1991.

Warning: These citations may not always be 100% accurate.