I've put the article on hold for seven days to allow folks to address the issues I've brought up. Feel free to contact me on my talk page, or here with any concerns, and let me know one of those places when the issues have been addressed. If I may suggest that you strike out, check mark, or otherwise mark the items I've detailed, that will make it possible for me to see what's been addressed, and you can keep track of what's been done and what still needs to be worked o--Jim Sweeney (talk) 17:31, 21 September 2010 (UTC)[reply]
I've fixed those that are possible to fix. Hurd and Scheer's books were published in 1912 and 1920, respectively, and predate ISBNs by over 40 years, hence no ISBN for either. Thanks for reviewing the article. Parsecboy (talk) 21:39, 21 September 2010 (UTC)[reply]