Question : Average energy density of coal

Apparently the EPA includes a section on the average energy density of coal but I cannot find it; it doesn't help that their search engine is seriously outdated.

I was able to find the following sources:
http://hypertextbook.com/facts/2003/JuliyaFisher.shtml
http://en.wikipedia.org/wiki/Coal
...which state 24 Megajoules per kilogram.

However, I need to find a more official source. Where did this value come from? Who copied who? I am comfortable with the wiki entry, however, my company wants me to reference the EPA or any other 'trusted' source or authority.

Can any one provide me with either an EPA reference or another authoritative site?

Answer : Average energy density of coal

I would use a repater, which offers better customization of the output
yes you would need a nested repeater

here a simple tutorial on how to manipulate repeaters
http://msdn.microsoft.com/en-us/library/aa478959.aspx