Teja Gerken (Gerken, Teja)

English

• 
  Acoustic Guitar: An Historical Look at the Composition, Construction, and Evolution of One of the World's Most Beloved Instruments
  by Michael Simmons, Richard Johnston, Frank Ford, GERKEN
  Softcover, Hal Leonard Corp, ISBN 0634079204 (0-634-07920-4)
• 
  Acoustic Guitars: The Illustrated Encyclopedia
  by Tony Bacon, Dave Hunter, Michael Simmons, Richard Johnston, Michael Wright, Walter Carter, Ben Elder, Teja Gerken, Mikael Jansson, Jerry Uwins
  Hardcover, Advantage Pub Group, ISBN 1592230512 (1-59223-051-2)

German

• Akustische Gitarren. Factfinder-Serie
  by Teja Gerken
  Softcover, ISBN 391009824X (3-910098-24-X)