APA (7e ed.) Bronvermelding

(1970). Square is a shape: A book about shapes / by Sharon Lerner.

Chicago (17e ed.) Bronvermelding

Square Is a Shape: A Book About Shapes / by Sharon Lerner. 1970.

MLA (9e ed.) Bronvermelding

Square Is a Shape: A Book About Shapes / by Sharon Lerner. 1970.

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