Fletcher, H. (1972). Mathematics for schools: An integrated series. Addison-Wesley.
Citazione stile Chigago Style (17a edizione)Fletcher, Harold. Mathematics for Schools: An Integrated Series. London: Addison-Wesley, 1972.
Citatione MLA (9a ed.)Fletcher, Harold. Mathematics for Schools: An Integrated Series. Addison-Wesley, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.