Cita APA (7a ed.)

American Association of School Administrators. (1971). Open space schools. [s.n.].

Cita Chicago Style (17a ed.)

American Association of School Administrators. Open Space Schools. Washington: [s.n.], 1971.

Cita MLA (9a ed.)

American Association of School Administrators. Open Space Schools. [s.n.], 1971.