APA

المعهد القومى للتخطيط, . (1977). The theoretical aspects of the choice of techniques problem in developing countries. Cairo: The Institute of National Planning.

Chicago

المعهد القومى للتخطيط, . 1977. The theoretical aspects of the choice of techniques problem in developing countries. Cairo: The Institute of National Planning.

Harvard

المعهد القومى للتخطيط, . (1977). The theoretical aspects of the choice of techniques problem in developing countries. Cairo: The Institute of National Planning.

MLA

المعهد القومى للتخطيط, . The theoretical aspects of the choice of techniques problem in developing countries. Cairo: The Institute of National Planning. 1977.