APA-referens

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

Chicago-stil citat

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

MLA-referens

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