Dyfyniad APA

Snodgrass, M. . M., & Wallace, L. T. (1977). Agriculture , economics and resources management. Prentice hall.

Dyfyniad Arddull Chicago

Snodgrass, Milton M., and L. T. Wallace. Agriculture , Economics and Resources Management. New Delhi: Prentice hall, 1977.

Dyfyniad MLA

Snodgrass, Milton M., and L. T. Wallace. Agriculture , Economics and Resources Management. Prentice hall, 1977.

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