Παραπομπή σε μορφή APA (7η εκδ.)

engert, M. (1963). new trends in polytechnic education special reference to planning of manpower demand in the long run. National Planning Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

engert, M. New Trends in Polytechnic Education Special Reference to Planning of Manpower Demand in the Long Run. cairo: National Planning Institute, 1963.

Παραπομπή σε μορφή MLA (9th εκδ.)

engert, M. New Trends in Polytechnic Education Special Reference to Planning of Manpower Demand in the Long Run. National Planning Institute, 1963.