Dyfyniad APA

Snodgrass, M. M., & Wallace, L. T. (1980). Agriculture, economics, and resource management (2d ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Snodgrass, Milton Moore, and Luther T. Wallace. Agriculture, Economics, and Resource Management. 2d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1980.

Dyfyniad MLA

Snodgrass, Milton Moore, and Luther T. Wallace. Agriculture, Economics, and Resource Management. 2d ed. Prentice-Hall, 1980.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.