?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Ejaz&rft.aufirst=Tabassum&rft.au=Ejaz%2C+Tabassum&rft.inst=UCL+(University+College+London)&rft.degree=Doctoral&rft.date=1997&rft.tpages=247&rft.title=Hydrothermal+precipitation+of+zeolite+A+crystals