R. L · Richard H. · Richard L. · Richard Langley
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 5 Steps to a 5 AP Chemistry, 2008-2009 Edition | 978-0-07-148855-6 (0-07-148855-3) | 2007 | John Moore |
| 5 Steps to a 5 AP Chemistry, 2010-2011 Edition | 978-0-07-162477-0 (0-07-162477-5) | 2009 | " |
| Chemistry for the Utterly Confused | 978-0-07-147529-7 (0-07-147529-X) | 2007 | " |