The Reams-Ag Desk Reference print book is for sale on Amazon.
Or you can download a 100 page preview to see how it works in your PDF reader. (If you want the complete PDF covering everything in the table of contents, you can send $50 to <firstname.lastname@example.org>)
Or you can get an idea from the below pages. Note that as a database dump, it is not formatted as well as the print book.