Mann, William M.,  1886-1960. <br/><br/>
Wild animals in and out of the Zoo / 
by William M. Mann. 
 - 8 páginas l., 374 p. :  color front., plates (part col.) ports. ;  23 cm. 
 - Smithsonian scientific series ;  6 .
<br/><br/> A history of the National Zoological Park and its animals 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Animales-- Hábitos y comportamiento.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>National Zoological Park (Estados Unidos)
<br/><br/><label>LC Class. No.: </label>QL77.W3  / M3 1943