Eusebio, J. A., & Labios, R. V. Food security: Integrated farming systems (with environment friendly approaches).
Cita Chicago (17th ed.)Eusebio, Jose A., i Romeo V. Labios. Food Security: Integrated Farming Systems (with Environment Friendly Approaches). Quezon City :JMC Press, 2001.
Cita MLA (9th ed.)Eusebio, Jose A., i Romeo V. Labios. Food Security: Integrated Farming Systems (with Environment Friendly Approaches).
Atenció: Aquestes cites poden no estar 100% correctes.