Carbonell, G. A. An evaluation of supervisory activities of the Catholic elementary schools of the Mountain Provinces.
Chicago-referens (17:e uppl.)Carbonell, Guadalupe A. An Evaluation of Supervisory Activities of the Catholic Elementary Schools of the Mountain Provinces.
MLA-referens (9:e uppl.)Carbonell, Guadalupe A. An Evaluation of Supervisory Activities of the Catholic Elementary Schools of the Mountain Provinces.
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