The geographical Method of Ethnography.

[1] ARMBRUSTER L, 1920, ARCH BIENENKUNDE, V2

[2] AUBIN H, 1916, GESCH HANDATLAS RHEI

[3] AUBIN H, 1929, KULTURSTROMUNGEN KUL

[4] AUBIN H, 1929, SONDERBDRUCK NEUEN J, V5, P32

[5] BARTHOLOMEW, 1911, ATLAS ZOOGEOGRAPHY

[6] BENECKESCHLOBCK, 1914, LUNEBURGER HEIMATBUC, V2, P112

[7] BOEHM F, 1929, VOLKSKUNDE ATLAS DTS, P35

[8] BOGATYREV P, 1928, SLAVIA CASOPIS SLOVA, P600

[9] BRANDI K, 1909, Z HIST VEREINS NIEDE, P346

[10] BRANDI K, 1909, Z HIST VEREINS NIEDE, P329

[1] ARMBRUSTER L, 1920, ARCH BIENENKUNDE, V2

[2] AUBIN H, 1916, GESCH HANDATLAS RHEI

[3] AUBIN H, 1929, KULTURSTROMUNGEN KUL

[4] AUBIN H, 1929, SONDERBDRUCK NEUEN J, V5, P32

[5] BARTHOLOMEW, 1911, ATLAS ZOOGEOGRAPHY

[6] BENECKESCHLOBCK, 1914, LUNEBURGER HEIMATBUC, V2, P112

[7] BOEHM F, 1929, VOLKSKUNDE ATLAS DTS, P35

[8] BOGATYREV P, 1928, SLAVIA CASOPIS SLOVA, P600

[9] BRANDI K, 1909, Z HIST VEREINS NIEDE, P346

[10] BRANDI K, 1909, Z HIST VEREINS NIEDE, P329