Kolkaila, A., Hammad, S., Abd-ElGhader, A. and Makawi, A. 1971. Studies on the Arthropods and microorganisms of some Libyan Soils, Soil Arthropods and soil microorganisms of a Hill at El-Marj region. The Libyan Journal of Agriculture. 1, 1 (Dec. 1971), 6–12.