സദാശിവൻ, വി. <br/><br/>
വന്യജീവി നിരീക്ഷണങ്ങൾ / 
 Vanyajeevi nereekshanangal. 
by Sadasivan. 
 - Thiruvananthapuram :  Keral State language institute,  1990. 
 - 56p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wild life.
<br/><br/><label>Dewey Class. No.: </label>639.90954  / SAD.V