Lee, P. (1975). Computing methods for schools. Science Education Center.
Citazione stile Chigago Style (17a edizione)Lee, Peng-Yee. Computing Methods for Schools. Quezon City: Science Education Center, 1975.
Citatione MLA (9a ed.)Lee, Peng-Yee. Computing Methods for Schools. Science Education Center, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.