School mathematics study group. (1959). Junior High School Mathematics Units: Volume I, Number Systems ; Commentary for Teachers. Yale University.
Цитирование в стиле Чикаго (17-е изд.)School mathematics study group. Junior High School Mathematics Units: Volume I, Number Systems ; Commentary for Teachers. Connecticut: Yale University, 1959.
Цитирование MLA (9-е изд.)School mathematics study group. Junior High School Mathematics Units: Volume I, Number Systems ; Commentary for Teachers. Yale University, 1959.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.