Fremont, H. (1969). How to teach mathematics in secondary schools. Saunders.
Citazione stile Chigago Style (17a edizione)Fremont, Herbert. How to Teach Mathematics in Secondary Schools. Philadelphia: Saunders, 1969.
Citatione MLA (9a ed.)Fremont, Herbert. How to Teach Mathematics in Secondary Schools. Saunders, 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.