TY  - BOOK
AU  - Leser, Paul
AU  - Leser, Paul
TI  - Enstehung And Verbrietung Des Pfluges (Formation And Spread Of Ploughs)
U1  - JOY171:83u 
PY  - 1971///
CY  - Denmark
PB  - Natioanl Museum
KW  - JOY171:83u
ER  -