APA (7e ed.) Bronvermelding

Não informado. (1969). Ontario education. Ontario Public School Trustees Association.

Chicago (17e ed.) Bronvermelding

Não informado. Ontario Education. Toronto, Canada: Ontario Public School Trustees Association, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Ontario Education. Ontario Public School Trustees Association, 1969.

Let op: Deze citaties zijn niet altijd 100% accuraat.