- Escobar, Rocio & Hernández, Flor & Gil Vega, Katia Del Carmen & Simpson, June. (2008). Seed production and gametophyte formation in Agave tequilana and Agave americana. Botany. 86. 1343-1353. 10.1139/B08-099.
- Agave americana An overview, at Science Direct
- Escalante Adelfo, López Soto David R., Velázquez Gutiérrez Judith E., Giles-Gómez Martha, Bolívar Francisco, López-Munguía Agustín: Pulque, a Traditional Mexican Alcoholic Fermented Beverage: Historical, Microbiological, and Technical Aspects
- The 7 steps of Tequila making (IZKALI)
- Lev-Yadun, Simcha. “Weapon (thorn) Automimicry and Mimicry of Aposematic Colorful Thorns in Plants.” Journal of Theoretical Biology 224.2 (2003): 183-88
See full list of Individual Species References.
Please also refer to the General Bibliography and Online Resources.