Delorit, R. J., Greub, L. J., & Ahlgren, H. L. (1973). Crop production (4th ed.). Prentice-Hall.
Chicago Style (17th ed.) CitationDelorit, Richard J., Louis J. Greub, and Henry Lawrence Ahlgren. Crop Production. 4th ed. Englewood Cliffs, N.J.,: Prentice-Hall, 1973.
MLA (9th ed.) CitationDelorit, Richard J., et al. Crop Production. 4th ed. Prentice-Hall, 1973.
Warning: These citations may not always be 100% accurate.