Cita APA (7a ed.)
Hill, W. (1963). Unit planning and teaching in elementary social studies.
Cita estilo Chicago (17a ed.)
Hill, Wilhelmina. Unit Planning and Teaching in Elementary Social Studies. 1963.
Cita MLA (9a ed.)
Hill, Wilhelmina. Unit Planning and Teaching in Elementary Social Studies. 1963.
Precaución: Estas citas no son 100% exactas.