el koussy, a. (1964). preconditions for educational planning. the institute of national planning.
Chicago (17e ed.) Bronvermeldingel koussy, a.a. Preconditions for Educational Planning. cairo: the institute of national planning, 1964.
MLA (9e ed.) Bronvermeldingel koussy, a.a. Preconditions for Educational Planning. the institute of national planning, 1964.
Let op: Deze citaties zijn niet altijd 100% accuraat.