| 1. | CLAY MINERALOGY OF THE ALLUVIAL SOIL OF UPPER EGYPT | |
| Pages 589-598 | ||
| SAYED H.H AHMED; BOUTHINA E. EL-TAWEL | ||
| 2. | EFFECT OF PERMANENT FERTILIZATION AND AGRICULTURAL ROTATION ON COTTON PLANTS. | |
| Pages 599-608 | ||
| SAMER S. MEGALAH; MOHAMED M. R. ABDEL-MAKSOUD; AMER S. ABDEL-NOUR | ||
