| APA | Smart Define. (2015). greylag goose thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/greylag_goose/thesaurus/broader |
| Chicago | Smart Define. 2015. "greylag goose thesaurus" https://smartdefine.org/greylag_goose/thesaurus/broader (accessed September 29, 2026). |
| Harvard | Smart Define 2015, greylag goose thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/greylag_goose/thesaurus/broader>. |
| MLA | Smart Define. "greylag goose thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/greylag_goose/thesaurus/broader> |