@inbook{Duncan1985,
author = {Duncan, G.J. and Morgan, J.N.},
title= {The panel study of income dynamics},
year = {1985},
editor = {Elder Jr., G.H. },
booktitle = {Life Course Dynamics: Trajectories and Transitions, 1968-1980},
address = {Ithaca},
publisher = {Cornell University Press},
pages = {50--71},
}