Maranon, J., Bartlett, H. H., & Velasquez, G. T. (1941). Cinchona cultivation and the production of totaquina in the Philippines. University of the Philippines.
Lua i Stíl Chicago (17ú heag.)Maranon, Joaquin, Harley Harris Bartlett, agus Gregorio T. Velasquez. Cinchona Cultivation and the Production of Totaquina in the Philippines. Manila: University of the Philippines, 1941.
Lua MLA (9ú heag.)Maranon, Joaquin, et al. Cinchona Cultivation and the Production of Totaquina in the Philippines. University of the Philippines, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.