APA (7e ed.) Bronvermelding

Não informado. (1970). Challenge in Educational Administration. Alberta Teachers Association.

Chicago (17e ed.) Bronvermelding

Não informado. Challenge in Educational Administration. Edmonton, Canada: Alberta Teachers Association, 1970.

MLA (8e ed.) Bronvermelding

Não informado. Challenge in Educational Administration. Alberta Teachers Association, 1970.

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