TY  - BOOK
AU  - Nekipelov, N. V.
ED  - World health organization
TI  - Principles and methods of conducting epizootological surveys in marmot natural plague foci in the USSR
PY  - 1968///
CY  - M.
KW  - Москва
KW  - Ме3-1252
KW  - rubbk
ER  -