David, C. C. (1982). Economic policies and agricultural incentives. Philippine Institute for Development Studies.
Cita Chicago (17th ed.)David, Cristina C. Economic Policies and Agricultural Incentives. [Makati, Metro Manila]: Philippine Institute for Development Studies, 1982.
Cita MLA (9th ed.)David, Cristina C. Economic Policies and Agricultural Incentives. Philippine Institute for Development Studies, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.