Association of Teachers of Mathematics. (1977). Notes on mathematics for children. Cambridge University.
Citazione stile Chigago Style (17a edizione)Association of Teachers of Mathematics. Notes on Mathematics for Children. Cambridge [England]: Cambridge University, 1977.
Citatione MLA (9a ed.)Association of Teachers of Mathematics. Notes on Mathematics for Children. Cambridge University, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.