DELORIT, R. J. (1974). Crop production - Richard J. Delorit, Louis J.Greub. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)DELORIT, Richard J. Crop Production - Richard J. Delorit, Louis J.Greub. Prentice Hall, 1974.
Lua MLA (8ú heag.)DELORIT, Richard J. Crop Production - Richard J. Delorit, Louis J.Greub. Prentice Hall, 1974.
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