Yahya, Harun,  1956- <br/><br/>
Altruism in nature  [videorecording] / 
Harun Yahya 
 - Istanbul :  Okur Production,  2000 
 - 1 videodisc (DVD) (1 hr. 24 min.) :  sd., col. ;  12 cm. 
 - The fact of creation series [videorecording] .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Altruism<br/>Helping behavior