In the United States:

When Women Were Warriors
is available from Amazon.com.
Also available from Barnes and Noble,
A1 Books, and Alibris

Internationally:

When Women Were Warriors is available from Amazon Canada, Amazon UK,
Amazon France, Amazon Germany,
Amazon Japan, flipkart in India, and from Booktopia in Australia.

E-books:

When Women Were Warriors is available for:
Amazon’s Kindle e-book reader.
In multiple formats (epub, pdf, rtf, lrf, pdb, txt, and html) from Smashwords
Adobe eBook Reader from Powell's and BooksOnBoard
Mobipocket:    Book I   Book II   Book III
Mobipocket:    CyberRead  
For a limited time, Book I is available as a FREE download in several eBook formats
from the author’s website at www.catherine-m-wilson.com