ebrary http://site.ebrary.com/id/10359156
EBSCOhost http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=297530
MyiLibrary http://www.myilibrary.com?id=261880
OverDrive https://www.overdrive.com/search?q=0F160909-31AF-495C-BAA0-7867D8A6E584
MyiLibrary, Table of contents http://www.myilibrary.com?id=261880&ref=toc

Ebook Library http://public.eblib.com/choice/publicfullrecord.aspx?p=3135891
ebrary http://site.ebrary.com/id/10086996
Safari Books Online http://0proquest.safaribooksonline.com/1598630172####################
Safari Books Online http://proquest.safaribooksonline.com/1598630172

Ebook Library http://public.eblib.com/choice/publicfullrecord.aspx?p=3135608
ebrary http://site.ebrary.com/id/10054315
EBSCOhost http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=108938
Google http://books.google.com/books?id=NB5UAAAAMAAJ
HathiTrust Digital Library, Limited view (search only) http://catalog.hathitrust.org/api/volumes/oclc/53999257.html

Ebook Library http://public.eblib.com/choice/publicfullrecord.aspx?p=310636
ebrary http://site.ebrary.com/id/10159662
EBSCOhost http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=185304
JSTOR http://www.jstor.org/stable/10.5749/j.ctttszz2
MyiLibrary http://www.myilibrary.com?id=522865