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Biblioteca Central, UNS · Catálogo de libros | ||
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González de Bussetti, Silvia E. | ||||
1. | Isotopic exchange of phosphate on some phosphatic compounds / Silvia E. González de Bussetti, Eladio A. Ferreiro, Ahmed K. Helmy. | #### |
631.43
G589-1 |
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Hang, Susana B. | ||||
2. | Interacciones entre tres herbicidas (picloram, dicamba e imazaquín) con suelos / Susana B. Hang. | 1994 | ||
Helmy, Ahmed K. | ||||
3. | Concurrent effects of KC1 and pH on root concentration potentials / Ahmed K. Helmy, María de las M. Ron, Eladio A. Ferreiro. | #### |
631.43
H369-1 |
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4. | Flooculation of NH4 -montmorillonite by electrolytes / Ahmed K. Helmy, Eladio A. Ferreiro. | #### |
631.43
H369-2 |