Title: Biblio RTF Export
Author: Biblio 7.x

K.  Touleshkov, ?Natural foci of diseases in the Petrich and Gotse Delchev areas?, in Natural foci of diseases in the Petrich and Gotse Delchev areas, G.  Paspalev, Ed. Sophia: Izdatelstov. Bulgarian Academy of Sciences, 1962, pp. 121 - 140.