@book{2024:covey:die_7_wege,
title = {Die 7 Wege zur Effektivität für Jugendliche – Workbook},
year = {2024},
note = {},
edition = {1},
publisher = {GABAL Verlag},
address = {Offenbach},
series = {Erfolg},
volume = {},
author = {Covey, Sean}
}