Cita APA (7a ed.)

Barnard, H. (1906). Pestalozzi and his educational system. C. W. Bardeen.

Cita Chicago Style (17a ed.)

Barnard, Henry. Pestalozzi and His Educational System. Syracuse, N.Y.: C. W. Bardeen, 1906.

Cita MLA (8a ed.)

Barnard, Henry. Pestalozzi and His Educational System. C. W. Bardeen, 1906.