el - attar, M., L.steinmen, D. (1981). Natural population decrease differentials in Mississippi: an indicator of rural development. test, 15(2), 34-58. doi: 10.21608/mskas.1981.417840
mohamed el - attar; David L.steinmen. "Natural population decrease differentials in Mississippi: an indicator of rural development". test, 15, 2, 1981, 34-58. doi: 10.21608/mskas.1981.417840
el - attar, M., L.steinmen, D. (1981). 'Natural population decrease differentials in Mississippi: an indicator of rural development', test, 15(2), pp. 34-58. doi: 10.21608/mskas.1981.417840
el - attar, M., L.steinmen, D. Natural population decrease differentials in Mississippi: an indicator of rural development. test, 1981; 15(2): 34-58. doi: 10.21608/mskas.1981.417840