Collected papers in avian paleontology honoring the 90th birthday of Alexander Wetmore / 
Storrs L. Olson, editor 
 - Washington :  Smithsonian Institution Press,  1976 
 - xxvi, 211 p. :  ill. ;  27 cm. 
 - Smithsonian contributions to paleobiology ;  no. 27 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds, Fossil