Instructor's manual to accompany Turner/Helms Lifespan developmentJeffrey S. Turner · First published 1983Open the Tome
Study guide to accompany Turner/Helms Lifespan developmentJeffrey S. Turner · First published 1983Open the Tome
Encyclopedia of Adolescence in the Digital GenerationJeffrey S. Turner · First published 2018Open the Tome
Encyclopedia of relationships across the lifespanJeffrey S. Turner · First published 1996Open the Tome