Valles Septién, C. 1997 . Suculentas Mexicanas/Cactaceas. [Mexican Succulents/Cacti.]. CVS Publications. CONABIO, SEMARNAP/PROFEPA, UNAM Mexico 143 pp.

Notes: Chapters that discuss cochineal include [Nopal in Mexico and in the World.] El nopal en México y el mundo (Pimienta) and [Cultivation of a plague called "Grana" or nopal's cochineal.] Cultivo de la grana o cochinilla del nopal (Vigueras G., A.L. & Portillo M., L.).