Snodgrass, M. M., & Wallace, L. (1975). Agriculture, economics, and resource management. Prentice-Hall, Inc.
Chicago Style aipamenaSnodgrass, Milton M., and L.T Wallace. Agriculture, Economics, and Resource Management. Englewood Cliffs, New Jersey: Prentice-Hall, Inc, 1975.
MLA aipamenaSnodgrass, Milton M., and L.T Wallace. Agriculture, Economics, and Resource Management. Prentice-Hall, Inc, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.