Cita APA

Caswell, H. L. 1. (1956). How firm a foundation?: An appraisal of threats to the quality of elementary education. Cambridge, Mass.: Harvard University Press.

Citación estilo Chicago

Caswell, Hollis Leland 1901-1988. How Firm a Foundation?: An Appraisal of Threats to the Quality of Elementary Education. Cambridge, Mass.: Harvard University Press, 1956.

Cita MLA

Caswell, Hollis Leland 1901-1988. How Firm a Foundation?: An Appraisal of Threats to the Quality of Elementary Education. Cambridge, Mass.: Harvard University Press, 1956.