Galton, Peter M. <br/><br/>
Redescription of the skull and mandible of parksosaurus from the late cretaceous with comments on the family hypsilophodontidae (ornithischia) 
P. M. Galton 
 - Toronto  Royal Ontario Museum  1973 
 - 21 p. : ill. ; 26 cm. 
 - Life sciences contributions, no.89. .
<br/><br/>Bibliography: p. 19-21. 
<br/><br/><label>LCCN: </label>74-193555 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Parksosaurus<br/>Hypsilophodontidae<br/>Paleontology--Cretaceous