For other books by Melissa Alvarez, view
Melissa Alvarez's Smashwords author profile page. 
It's possible you may find an newer edition of this book there. 
Alternatively, if you don't find an another version, the
author profile page
may provides links to the author's web site and social
media.  You could try contacting the author there and ask
them to return the book to Smashwords. 

For other books published by Adrema Press, view
Adrema Press's Smashwords publisher profile page. 
It's possible you may find an newer edition of this book there. 
Alternatively, if you don't find an another version, the
publisher profile page
may provides links to the publisher's web site and social
media.  You could try contacting the publisher there and ask
them to return the book to Smashwords.