@article{Swartz_1963,
title={An Occurrence of a Three-Quarter Grooved Stone Ax from Oregon},
volume={29},
ISSN={2051-6177},
url={http://dx.doi.org/10.1080/00231940.1963.11757652},
DOI={10.1080/00231940.1963.11757652},
number={2},
journal={KIVA},
publisher={Informa UK Limited},
author={Swartz,
B. K.},
year={1963},
month=dec,
pages={58–59} }