| APA | Smart Define. (2013). plant food element thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/plant_food_element/thesaurus/related |
| Chicago | Smart Define. 2013. "plant food element thesaurus" https://smartdefine.org/plant_food_element/thesaurus/related (accessed October 1, 2026). |
| Harvard | Smart Define 2013, plant food element thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/plant_food_element/thesaurus/related>. |
| MLA | Smart Define. "plant food element thesaurus" 18 May 2013. Web. 1 October 2026. <https://smartdefine.org/plant_food_element/thesaurus/related> |