APA

Bremer J., Von Moschzisker M., . (1971). The school without walls, Philadelphia's Parkway Program. New York: Holt, Rinehart and Winston.

Chicago

Bremer John, Von Moschzisker Michael, . 1971. The school without walls, Philadelphia's Parkway Program. New York: Holt, Rinehart and Winston.

Harvard

Bremer J., Von Moschzisker M., . (1971). The school without walls, Philadelphia's Parkway Program. New York: Holt, Rinehart and Winston.

MLA

Bremer John, Von Moschzisker Michael, . The school without walls, Philadelphia's Parkway Program. New York: Holt, Rinehart and Winston. 1971.