Downs, R. B. (1975). Heinrich pestalozzi: Father of modern pedagogy. Twayne.
Cita Chicago (17th ed.)Downs, Robert B. Heinrich Pestalozzi: Father of Modern Pedagogy. Boston: Twayne, 1975.
Cita MLA (9th ed.)Downs, Robert B. Heinrich Pestalozzi: Father of Modern Pedagogy. Twayne, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.