Lifespan DevelopmentClegg Kraynok, Megan; Seifert, Kelvin L.; Hoffnung, Robert J.; Hoffnung, Michele · First published 2016Open the Tome
Lifespan DevelopmentMichele Hoffnung, Robert J. Hoffnung, Kelvin L. Seifert, Alison Hine, Cat Pause · First published 2009Open the Tome
Management report, archeological monitoring and geomorphological investigationn at Camp Weygadt, Delaware Water Gap National Recreation Area, Warren County, New JerseyTod L. Benedict, Donna J. Seifert, Robert G. Kingsley, Paul Y. Inashima, United States. National Park Service, John Milner Associates · First published 1993Open the Tome
