"PALAEOBLOG".

Dingus L. & Norell M.A. 2010.
Barnum Brown: the man who discovered Tyrannosaurus rex.
ISBN 0-520-25264-0
"Rocky Road: Barnum Brown".

"Archived copy".
Archived from the original on 2008-12-31.
Retrieved 2009-03-17.
"PALAEOBLOG".
Dingus L. & Norell M.A. 2010. Barnum Brown: the man who discovered Tyrannosaurus rex. ISBN 0-520-25264-0
"Rocky Road: Barnum Brown".
"Archived copy". Archived from the original on 2008-12-31. Retrieved 2009-03-17.
Barnum Brown