Hussain, Syed Sadruddin <br/><br/>
Pakistan manual of plant ecology : a textbook of plant ecology for degree students 
/ Syed Sadruddin Hussain 
 - Islamabad :  NBF,  1992 
 - 255 p. : 
<br/><br/>ecological principles;<br/>phytogeography;<br/>applied ecology<br/> 
<br/><br/><label>ISBN: </label>(pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>581.7  / H963