Ahmed Mahdi, R. (2014). Natural attributes (physical) and their impact on the Classification of the human race. Alustath, 0(65), 1-27.
Rabah Ahmed Mahdi. "Natural attributes (physical) and their impact on the Classification of the human race". Alustath, 0, 65, 2014, 1-27.
Ahmed Mahdi, R. (2014). 'Natural attributes (physical) and their impact on the Classification of the human race', Alustath, 0(65), pp. 1-27.
Ahmed Mahdi, R. Natural attributes (physical) and their impact on the Classification of the human race. Alustath, 2014; 0(65): 1-27.


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