Medina, J. R., & Callo, D. P. (1999). Empowering farmers: The Philippines National Integrated Pest Management Program (2nd ed.). SEAMEO Regional Center for Graduate Study and Research in Agriculture.
Citazione stile Chigago Style (17a edizione)Medina, Jose R., e Damaso P. Callo. Empowering Farmers: The Philippines National Integrated Pest Management Program. 2nd ed. Laguna: SEAMEO Regional Center for Graduate Study and Research in Agriculture, 1999.
Citatione MLA (9a ed.)Medina, Jose R., e Damaso P. Callo. Empowering Farmers: The Philippines National Integrated Pest Management Program. 2nd ed. SEAMEO Regional Center for Graduate Study and Research in Agriculture, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.