Bossing, N. L. (1942). Progressive methods of teaching in secondary schools (Rev. ed.). Houghton Mifflin Company.
Chicago Style (17th ed.) CitationBossing, Nelson L. Progressive Methods of Teaching in Secondary Schools. Rev. ed. Boston, New York [etc.]: Houghton Mifflin Company, 1942.
ציטוט MLABossing, Nelson L. Progressive Methods of Teaching in Secondary Schools. Rev. ed. Houghton Mifflin Company, 1942.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.