Philippine Rice Research Institute. (1999). Field guide on harmful and useful organisms in Philippine ricefields (insects and non-insects). Philippine Rice Research Institute.
Cita Chicago (17th ed.)Philippine Rice Research Institute. Field Guide on Harmful and Useful Organisms in Philippine Ricefields (insects and Non-insects). Nueva Ecija: Philippine Rice Research Institute, 1999.
Cita MLA (9th ed.)Philippine Rice Research Institute. Field Guide on Harmful and Useful Organisms in Philippine Ricefields (insects and Non-insects). Philippine Rice Research Institute, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.