APA (7th ed.) Citation

Levins, R. A., & Walden, W. C. (1984). Agricultural computer programming: A practical guide. Prentice-Hall.

Chicago Style (17th ed.) Citation

Levins, Richard A., and W. Charles Walden. Agricultural Computer Programming: A Practical Guide. Englewood Cliffs, N.J: Prentice-Hall, 1984.

MLA (9th ed.) Citation

Levins, Richard A., and W. Charles Walden. Agricultural Computer Programming: A Practical Guide. Prentice-Hall, 1984.