- De la Torre, G., H. Garayar, I. Combe, and A. Lung. 1962a. Recommendaciones para el control del gorgojo de la cereza del cafe [Recommendations for the control of the coffee fruitweevil Hypothenemus hampei]. Peru Min. Agr. Serv. Invest. Promoc. Agr. Bol. Tec. 36:1-6.
- De la Torre, G., H. Garayar, I. Combe, and A. Lung. 1962b. Recommendations for the control of the coffee berry borer [In Spanish]. Cafe. Peruano 1(2):16-20.