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61by Charles F.Brumfiel ; Robert E. Eicholz ; Merrill E. ShanksSubjects: “...Mathematics...”
Published 1965
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62by Charles F.Brumfiel ; Robert E. Eicholz ; Merrill R. ShanksSubjects: “...Mathematics...”
Published 1961
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63
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64
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65by Louis A.Pipes Dan Lawrence R.Harvill ; Lawrence R. HarvillSubjects: “...Mathematics...”
Published 1958
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66
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67
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68by William L.Ayres ; Cleota G. Fry ; Harold F.S JonahSubjects: “...Mathematics...”
Published 1960
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69by V.Lidsky ; L. Ovsyannikov ; A. Tulaikov ; M. ShabuninSubjects: “...Mathematics...”
Published 1973
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70
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71
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72
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73
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74
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75
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76
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77
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78
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79
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80