TY  - GEN
AU  - Kajanto,Liro
TI  - On the problem onthe average duration of life in the Roman Empire
U1  - 937.06 21
PY  - 1968///
CY  - Helsinki
PB  - Suomalainen Tiedeakatemia
KW  - IMPERIO ROMANO
KW  - DEMOGRAFÍA
KW  - LEMB
ER  -