Winkler, Eberhard. 2001. Udmurt. (Languages of the World Materials.) München: LINCOM EUROPA.
@book{veselinovanegex-RN1425, address = {München}, author = {Winkler, Eberhard}, publisher = {LINCOM EUROPA}, series = {Languages of the World Materials}, title = {Udmurt}, type = {Book}, year = {2001} }