GeoEco | Faculty of Teacher Training and Education, Universitas Sebelas Maret. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)GeoEco | Faculty of Teacher Training and Education, Universitas Sebelas Maret. Cambridge University Press.
Citatione MLA (9a ed.)GeoEco | Faculty of Teacher Training and Education, Universitas Sebelas Maret. Cambridge University Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.