Mohamed Helmy Abdelzaher <br/><br/>
Studies on micropropagation of some citrus species and hybrids /  
 دراسات على الإكثار الدقيق على بعض أنواع الموالح والهجن 
Mohamed Helmy Abdelzaher ; Supervised Mohamed Ahmed Fayek , Amina Hamed Gomaa 
 - Cairo :   Mohamed Helmy Abdelzaher ,   1998 
 - 186Leaves :   charts , photographs ;   30cm 
<br/><br/>Thesis(Ph.D.) - Cairo University - Faculty of Agriculture - Departement of Pomology