APA (7e ed.) Bronvermelding

School mathematics study group. (1959). Junior High School Mathematics Units: Volume I, Number Systems ; Commentary for Teachers. Yale University.

Chicago (17e ed.) Bronvermelding

School mathematics study group. Junior High School Mathematics Units: Volume I, Number Systems ; Commentary for Teachers. Connecticut: Yale University, 1959.

MLA (9e ed.) Bronvermelding

School mathematics study group. Junior High School Mathematics Units: Volume I, Number Systems ; Commentary for Teachers. Yale University, 1959.