Johnston, E. G. (1930). Point systems and awards: The guidance, stimulation and limitation of pupil participation. A.S. Barnes and company, incorporated.
Цитирование в стиле Чикаго (17-е изд.)Johnston, Edgar Grant. Point Systems and Awards: The Guidance, Stimulation and Limitation of Pupil Participation. New York: A.S. Barnes and company, incorporated, 1930.
Цитирование MLA (9-е изд.)Johnston, Edgar Grant. Point Systems and Awards: The Guidance, Stimulation and Limitation of Pupil Participation. A.S. Barnes and company, incorporated, 1930.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.