DeLaunay, J. B. (1954). The teacher and vocations. Ave Maria Press.
Lua i Stíl Chicago (17ú heag.)DeLaunay, John B. The Teacher and Vocations. Notre Dame, Ind: Ave Maria Press, 1954.
Lua MLA (8ú heag.)DeLaunay, John B. The Teacher and Vocations. Ave Maria Press, 1954.
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