00282    a2200109   450000100060000008200120000610000260001824500600004426000340010430000110013850000230014990912  aPR 1001  aMuhammad Babar Saeed;  aDesign of Retractable Landing gear of Mashshakn30th EC  aKarachibNED Universityc1989  ax;136p  aBE Project Reports