(1970). Square is a shape: A book about shapes / by Sharon Lerner.
Citazione stile Chigago Style (17a edizione)Square Is a Shape: A Book About Shapes / by Sharon Lerner. 1970.
Citatione MLA (9a ed.)Square Is a Shape: A Book About Shapes / by Sharon Lerner. 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.