2 Commits (b638370f0b7ce3bea1606c96ef5d5b2ec339c26f)

Author	SHA1	Message	Date
Sam Frances	d51ffc37f5	Add John Guttag textbook to paid books in extras	2016-08-09 12:38:12 +01:00
Eric Douglas	1dbd5f321f	Update and rename books.md to paid-books.md ... #333	2016-06-30 07:24:48 -03:00