ErnährungsökologieIngrid Hoffmann, Katja Schneider, Claus Leitzmann · First published 2011Open the Tome
Alternative ErnährungsformenClaus; Keller, Markus; Hahn, Leitzmann · First published 2005Open the Tome
Vollwertkche fr Genieer. 250 Rezepte fr die gesunde Ernhrung.Claus Leitzmann, Helmut Million · First published 2003Open the Tome
Dictionary of Nutrition/ English/ French/ German/ Italian/ SpanishClaus Leitzmann · First published 1996Open the Tome
Vegetarische Ernährung.Claus Leitzmann, Andreas Hahn, Judith Baumgartner, Rosa Schönhöfer-Rempt · First published 1996Open the Tome