(1973). Practical guide to functional literacy: A method of training for development. Unesco.
Citazione stile Chigago Style (17a edizione)Practical Guide to Functional Literacy: A Method of Training for Development. Paris: Unesco, 1973.
Citatione MLA (9a ed.)Practical Guide to Functional Literacy: A Method of Training for Development. Unesco, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.