SPAEPEN, J. <br/><br/>
Recoveries of Woodlarks, Lullula Arborea (L.) / 
By J. Spaepen and F. Van Cauteren. 
 -- [S.l.] :   [s.n.],   1961 
 - 8 p.  il. 
<br/><br/> Separata de : Le Gerfaut = De Giervalk, Bruxelles, 1961, fasc.II 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Alondras<br/>Aves - Migración
<br/><br/><label>Universal Decimal Class. No.: </label>598.8-19