Παραπομπή σε μορφή APA (7η εκδ.)

COOMBS, P. H. (1987). Cost Analysis In Education A Tool For Policy And Planning Philip H. Coombs And Jacques Hallak. The Johns Hopkins University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

COOMBS, Philip H. Cost Analysis In Education A Tool For Policy And Planning Philip H. Coombs And Jacques Hallak. The Johns Hopkins University, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

COOMBS, Philip H. Cost Analysis In Education A Tool For Policy And Planning Philip H. Coombs And Jacques Hallak. The Johns Hopkins University, 1987.