Principles of secondary education; a text-book

MLA

De Garmo, Charles. Principles of secondary education; a text-book. New York ; London : The Macmillan company, 1907-10.

APA

De Garmo, C. (1907). Principles of secondary education; a text-book. New York ; London : The Macmillan company.

Chicago

De Garmo, Charles. Principles of secondary education; a text-book. New York ; London : The Macmillan company, 1907-10.