Cita APA (7a ed.)

Roorbach, A. O. (1937). The development of the social studies in american secondary education before 1861.

Cita Chicago Style (17a ed.)

Roorbach, Agnew O. The Development of the Social Studies in American Secondary Education Before 1861. 1937.

Cita MLA (8a ed.)

Roorbach, Agnew O. The Development of the Social Studies in American Secondary Education Before 1861. 1937.