APA
(2009). Soil protection in sloping mediterranean agri-environments. Bragança: Instituto Politécnico de Bragança.
Chicago
2009. Soil protection in sloping mediterranean agri-environments. Bragança: Instituto Politécnico de Bragança.
Harvard
(2009). Soil protection in sloping mediterranean agri-environments. Bragança: Instituto Politécnico de Bragança.
MLA
Soil protection in sloping mediterranean agri-environments. Bragança: Instituto Politécnico de Bragança. 2009.