Citazione APA

(1975). Open university: International comparisons of levels of development. Open University Press.

Stile di citazione Chicago

Open University: International Comparisons of Levels of Development. Milton Keynes: Open University Press, 1975.

Citazione MLA

Open University: International Comparisons of Levels of Development. Open University Press, 1975.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.