American Education Fellowship. (1939). Progressive education booklet. American Education Press.
Chicago-стиль цитированияAmerican Education Fellowship. Progressive Education Booklet. Columbus, Ohio: American Education Press, 1939.
MLA-цитированиеAmerican Education Fellowship. Progressive Education Booklet. American Education Press, 1939.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.