Bulgarian Journal of Soil Science | Bulgarian Soil Science Society. Cambridge University Press.
Citazione stile Chigago Style (17a edizione)Bulgarian Journal of Soil Science | Bulgarian Soil Science Society. Cambridge University Press.
Citatione MLA (9a ed.)Bulgarian Journal of Soil Science | Bulgarian Soil Science Society. Cambridge University Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.