Perraton, H. D. (1993). Distance education for teacher training. Routledge.
Citazione stile Chigago Style (17a edizione)Perraton, H. D. Distance Education for Teacher Training. London: Routledge, 1993.
Citatione MLA (9a ed.)Perraton, H. D. Distance Education for Teacher Training. Routledge, 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.