Cardenas, B. C. (1971). The construction of a mathematics teaching machine and its use in programmed learning.
Citazione stile Chigago Style (17a edizione)Cardenas, Benito Castro. The Construction of a Mathematics Teaching Machine and Its Use in Programmed Learning. 1971.
Citatione MLA (9a ed.)Cardenas, Benito Castro. The Construction of a Mathematics Teaching Machine and Its Use in Programmed Learning. 1971.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.