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61Published 1981Government Document Book
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62
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63
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64Published 1982Government Document Book
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65Published 1982Government Document Book
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66
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67
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68
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69
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70Firefly luciferase ATP assay development for monitoring bacterial concentrations in water supplies /Published 1981Government Document Book
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71
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72
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73Published 1983Government Document Book
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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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79Published 1984Government Document Book
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80