question about Ricks ETBD book and budget

No, I don't believe that it's online. A similar listing is in the intro to each guidebook:

In 2015, you can travel comfortably for a month for $5,750 (not including your airfare). If you have extra money, it’s more fun to spend it in Europe.
Allow approximately (per person):
$1,000 shared car rental or 15-days-in-two-months rail pass
800 sightseeing and entertainment
200 shopping and miscellany
+3,750 room and board ($125/day)
$5,750

Students or rock-bottom budget travelers can enjoy a month of Europe for about 40 percent less--$3,200 plus airfare.
Allow approximately (per person):
$800 one-month youth rail pass
500 sightseeing and entertainment
100 shopping and miscellany
+1,800 room and board ($60/day)
$3,200

Thanks very much! That's the budget I was thinking of.