| Type |  Book |
| ชื่อเรื่อง | Genetic contributions to yield gains of five major crop plants : proceedings of a symposium sponsored by Division C-1 of the Crop Science Society of America, 2 December 1981, in Atlanta, Georgia / W.R. Fehr, editor |
| ISBN | 0-89118-517-8 |
| พิมพลักษณ์ | Madison, Wis. : Crop Science Society of America, c1984 |
| รูปเล่ม | 101 p. : ill. ; 23 cm |
| หัวเรื่อง | Crop yields --Congresses [] |
| | Field crops --Breeding --Congresses [] |
| | Field crops --Genetics --Congresses [] |