الفترة:
الموضوعات: الزراعة؛ مصر؛ المرأة
الموضوعات: مطروح؛ الأحوال الاقتصادية؛ الحياة الفكرية؛ المرأة
Subjects: Calcareous soils; Sandy soils
Subjects: Sandy soils; Soybean
Subjects: Egypt; Electrolysis; Physics; Groundwater
Subjects: Sandy soils; Bacteria; Medicinal plants
Subjects: Elastomers
Subjects: Biology; Chromosomes; Embryology; Genetics; Plants
Subjects: Calcareous soils; Egypt
Subjects: Electric conductors; Middle East; Resistors
Subjects: Biology; Egypt; Environment; Ecology; Medicinal plants
Subjects: Analytical geochemistry; Egypt; Groundwater
Subjects: Dry farming; Egypt; Barley