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61. World food survey (id:46832)

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62. The auxiliary use of Landsat data in estimating crop acreages : results of the 1975 Illinois crop-acreage experiment (id:43579)

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63. An empirical study of the area frame stratification (id:47438)

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64. LANDSAT estimation with cloud cover (id:47003)

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65. Missing data procedures : a comparative study (id:43251)

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66. Multiple frame livestock surveys : an evaluation of alternative methods of overlap determination (id:43211)

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67. The effect on sampling errors resulting from using a livestock list with an area frame sample (id:46047)

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68. A new approach to small area crop-acreage estimation (id:43354)

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69. Optimizing the use of list and area samples in livestock multiple frame surveys (id:43172)

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70. Replicated sampling and an application to list frame surveys (id:43171)

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71. Some current research efforts to improve crop forecasting methods (id:27312)

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72. The development of objective methods to forecast dry bean yield (id:30173)

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73. 1973 crop production in Upper Volta (id:55335)

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74. Analysis of 1973 Nebraska June enumerative survey and multiple frame survey livestock estimates : reduced list sample concept (id:43348)

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75. How questionnaire design may affect survey data : Wyoming study (id:43194)

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76. Multiple frame livestock surveys : a comparison of area and list sampling (id:43210)

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77. A comparison of several regression models for forecasting pecan yields (id:22163)

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78. The use of interpenetrating sampling in area frames (id:46187)

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79. Sampling for objective estimates of apple yields, Virginia, 1969 (id:27957)

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80. Summary report on Texas citrus research (id:29583)