@inbook{Christian+2012+6+6,
url = {https://doi.org/10.5876/9781885635280.c004},
title = {A Tree},
booktitle = {Family System},
author = {Jack Christian},
publisher = {University Press of Colorado},
pages = {6--6},
doi = {doi:10.5876/9781885635280.c004},
isbn = {9781885635280},
year = {2012},
lastchecked = {2026-04-29}
}