Added section on bibliographies

lbol.tex

@@ -924,6 +924,17 @@ The following array shows the difference between ordinary and ``nice'' fractions
 
 \chapter{Referencing}
 
+\section{Internal References}
+
+\section{Bibliographies}
+
+\LaTeX{} has two major ways of handling bibliographies: an embedded system using the \texttt{bibitem} command, and an external system using \texttt{BibTeX}. Both systems have their advantages and disadvantages. 
+
+The advantage of using the embedded system is that it is simpler and therefore easier to understand and use. It also compiles faster. The disadvantage is that it is not as powerful as \texttt{BibTex}. But it will suffice quite nicely if you are writing a limited number of documents.
+
+The advantage of using \texttt{BibTex} is that it is much more powerful, and if you are writing longer documents, or related groups of documents that pull from the same group of references, it greatly simplifies managing your bibliography. That power comes at a price, however, as it is more complicated (thus the ways to make mistakes are more numerous) and it does take longer to compile.
+
+Describing either system is beyond the scope of this booklet. However, Wikibooks has an excellent tutorial at \kref{https://en.wikibooks.org/wiki/LaTeX/Bibliography_Management}{https://en.wikibooks.org/wiki/LaTeX/Biblio\\graphy\_Management}.
 
 \chapter{Macros}
 
@@ -1102,6 +1113,8 @@ I now have 11 lines to deal with instead of the current 1,129 lines I have. This
 \section{\texttt{\}\%} is Your Best Friend}
 
 
+
+
 sample text~\cite{website:overleaf001} ~\cite{website:wikibooks001} ~\cite{website:stexc001}
 
 more text ~\cite{website:stexc001}