APA
Outrelo E., . (2012). Mapping Degree Theory. Chennai: Universities press.
Chicago
Outrelo Enrique, . 2012. Mapping Degree Theory. Chennai: Universities press.
Harvard
Outrelo E., . (2012). Mapping Degree Theory. Chennai: Universities press.
MLA
Outrelo Enrique, . Mapping Degree Theory. Chennai: Universities press. 2012.