@article{Van de Putte2005,
author = {Van de Putte, B.  and Miles, A.},
title= {A Social Classification Scheme for Historical Occupational Data},
year = {2005},
doi = {10.3200/hmts.38.2.61-94},
journal = {Historical Methods},
volume = {38},
number = {2},
pages = {61--92},
}