Cita APA (7a ed.)
Frederick, R. W. (1965). Student activities in american education.
Cita estilo Chicago (17a ed.)
Frederick, Robert W. Student Activities in American Education. 1965.
Cita MLA (9a ed.)
Frederick, Robert W. Student Activities in American Education. 1965.
Precaución: Estas citas no son 100% exactas.