APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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