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41
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42
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43
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44
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45
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46
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47
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48Published 1978Conference Proceeding Book
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49A prescriptive model for planning a national scientific and technical information system for Egypt /by Machaly, Horeya Ibrahim
Published 1979Thesis Microform Book -
50
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51
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52Published 1983Conference Proceeding Book
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53
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54
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55
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56
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57
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58Published 1985Conference Proceeding Book
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59
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60