@inbook{Sik1988,
author = {Sik, E.},
title= {Reciprocal Exchange of Labour in Hungary},
year = {1988},
editor = {Pahl, R.E.},
booktitle = {On Work. Historical, Comparative and Theoretical Approaches},
address = {New York},
publisher = {Basil Blackwell},
pages = {527--547},
}