Add missing citations, copied back across from the LaTeX

Author: eric-wieser

doc/bibliography.rst

@@ -2,3 +2,4 @@ Bibliography
 ------------
 
 .. bibliography:: refs.bib
+    :all:

doc/refs.bib

@@ -25,13 +25,15 @@ @book{HestenesMech
 
 @book{Macdonald1,
     title = {Linear and {Geometric} {Algebra}},
+    publisher = {CreateSpace Independent Publishing Platform},
     author = {{Alan Macdonald}},
     year = {2010},
     url = {http://www.faculty.luther.edu/~macdonal/laga}
 }
 
 @book{Macdonald2,
     title = {Vector and {Geometric} {Calculus}},
+    publisher = {CreateSpace Independent Publishing Platform},
     author = {{Alan Macdonald}},
     year = {2012},
     url = {http://www.faculty.luther.edu/~macdonal/vagc/},
@@ -40,6 +42,7 @@ @book{Macdonald2
 @book{Dorst,
     title = {Geometric algebra for computer science: an object-oriented approach to geometry},
     shorttitle = {Geometric algebra for computer science},
+    publisher = {Morgan Kaufmann},
     author = {Dorst, Leo and Fontijne, Daniel and Mann, Stephen},
     year = {2009},
     note = {2nd printing},