Oryshkewych, Ostap E.. The philosophy of education / Ostap E. Oryshkewych ; foreword by Leonard A. McDonough . - New York : Philosohpical Library, 1979 . - xxii, 189 p. 23 cm. К.: Бібліогр. : с. 175-184 ISBN: 0-8022-1246-8 (v. 1)