@article{Pred1981,
author = {Pred, A.},
title= {Production, family, and free-time projects: A time-geographic perspective on the individual and societal change in nineteenth-century US cities},
year = {1981},
doi = {10.1016/0305-7488(81)90082-7},
journal = {Journal of Historical Geography},
volume = {7},
number = {1},
pages = {3‒36},
}