 |
 |
 |
|
-
The nature of shield abnormalities in the turtle shell / [by] Rainer Zangerl -- and Ralph G. Johnson --.
By: Zangerl, Rainer, - Johnson, Ralph Gordon,
Publication info: [Chicago] :Chicago Natural History Museum,1957.
Contributed by: Field Museum Library
BHL Collections: Field Museum Library
View record View book
-
New fossil polychaete from Essex, Illinois / Ida Thompson -- and Ralph G. Johnson --.
By: Thompson, Ida. - Johnson, Ralph Gordon,
Publication info: Chicago :Field Museum of Natural History,1977.
Contributed by: University of Illinois Urbana Champaign
View record View book
|
|
 |
|
 |