Shehata, Samy Mohamed. <br/><br/>
Evaluation of some biological as parameters for microbiological activities related to soil fertility  [microform] / 
Samy Mohamed Shehata. 
 -  1972. 
 - 112 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D.) -- Cairo Univesity, 1972. 
<br/><br/>Includes bibliographical references (leaves 90-108 ) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>3 negative : microfiche. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility.<br/>Soil biology.<br/>Soil microbiology.