Snodgrass, M. M., & Wallace, L. (1975). Agriculture, economics, and resource management (3rd ed.). Distributed by National Book Store.
Cita Chicago (17th ed.)Snodgrass, Milton M., i L.T Wallace. Agriculture, Economics, and Resource Management. 3rd ed. [Manila]: Distributed by National Book Store, 1975.
Cita MLA (9th ed.)Snodgrass, Milton M., i L.T Wallace. Agriculture, Economics, and Resource Management. 3rd ed. Distributed by National Book Store, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.