@book{GeibertHerzigKrumbeinetal.1995,
  author    = {H. Geibert and Reinhard Herzig and F. Krumbein and Bernd Raum},
  title     = {Terra - Geographie : Arbeitsheft f{\"u}r Rheinland-Pfalz 5/6 ; Lehrerheft},
  isbn      = {3-12-283174-0},
  year      = {1995},
}