| APA | Smart Define. (1970). deep feature of land thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/deep_feature_of_land/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "deep feature of land thesaurus" https://smartdefine.org/deep_feature_of_land/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 1970, deep feature of land thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/deep_feature_of_land/thesaurus/synonyms>. |
| MLA | Smart Define. "deep feature of land thesaurus" 1 January 1970. Web. 25 September 2026. <https://smartdefine.org/deep_feature_of_land/thesaurus/synonyms> |