Johnston, E. G. (1930). Point systems and awards: The guidance, stimulation and limitation of pupil participation. A.S. Barnes and company, incorporated.
Citação norma ChicagoJohnston, Edgar Grant. Point Systems and Awards: The Guidance, Stimulation and Limitation of Pupil Participation. New York: A.S. Barnes and company, incorporated, 1930.
Citação norma MLAJohnston, Edgar Grant. Point Systems and Awards: The Guidance, Stimulation and Limitation of Pupil Participation. A.S. Barnes and company, incorporated, 1930.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.