Snodgrass, M. M., & Wallace, L. T. (1975). Agriculture, economics, and resource management. National Book Store.
Lua i Stíl Chicago (17ú heag.)Snodgrass, Milton Moore, agus Luther T. Wallace. Agriculture, Economics, and Resource Management. [Manila]: National Book Store, 1975.
Lua MLA (9ú heag.)Snodgrass, Milton Moore, agus Luther T. Wallace. Agriculture, Economics, and Resource Management. National Book Store, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.