de Andrés Turrion, M. L., and P. García de Yébenes Torres. “The Purchase of Quinine Made by the Royal Apothecary During the Reign of Felipe V (1700-1746)”. Acta Botanica Malacitana, vol. 20, Dec. 1995, pp. 267-8, doi:10.24310/abm.v20i.8856.