May I use endgame books for online (correspondence) games?

I read the following in a help file:

Rules of Chess.com (...)

• Outside assistance from other people, computers/chess engines, or endgame tablebases is entirely prohibited 
• Openings books and game databases may be consulted for Online (correspondence-style) Chess only
• No reference tools of any sort are permitted in Live Chess 

(...)

Now my question is, may I use traditional ENDGAME literature (say Averbakh, Muller, Nunn etc, paper or electronic) for my online (correspondence) games?  You should explicitly provide this point in a help file.

yes but not in live chess though.

Thanks, kco.  Nowadays the line is obscure, because endgame books include many tablebase findings, in particular Nunn's "Secrets" series.  My rather academic question is, when computer analysis is prohibited, are printouts of computer analysis of often played positions (prepared in advance) OK?

 "are printouts of computer analysis of often played positions (prepared in advance) OK?" yes that is ok as long as you don't used the tablebase in any of your on going games (live or turn -based).