Used availability for Francesca Lia Block's Echo
Hardback Editions
July 2004 : USA Library Binding
Title: Echo
Author(s): Francesca Lia Block
ISBN: 0-606-30101-1 / 978-0-606-30101-5 (USA edition)
Publisher: Demco Media
Availability:
Amazon Amazon UK Amazon CA August 2002 : USA Library Binding

Title: Echo (Turtleback School & Library Binding Edition)
Author(s): Francesca L Block
ISBN: 0-613-53181-7 / 978-0-613-53181-8 (USA edition)
Publisher: Turtleback Books
Availability:
Amazon Amazon UK Amazon CA August 2001 : USA Hardback

Title: Echo
Author(s): Francesca Lia Block
ISBN: 0-06-028127-8 / 978-0-06-028127-4 (USA edition)
Publisher: HarperTeen
Availability:
Amazon Amazon UK Amazon CA Amazon AU August 2001 : USA Library Binding

Title: Echo
Author(s): Francesca Lia Block
ISBN: 0-06-028128-6 / 978-0-06-028128-1 (USA edition)
Publisher: Joanna Cotler Books
Availability:
Amazon Amazon UK Amazon CA Amazon AU Paperback Editions
August 2002 : USA Paperback

Title: Echo
Author(s): Francesca Lia Block
ISBN: 0-06-440744-6 / 978-0-06-440744-1 (USA edition)
Publisher: HarperTeen
Availability:
Amazon Amazon UK Amazon CA Amazon AU Kindle Editions
March 2009 : USA, Australia, Canada, UK Kindle edition