Summary: apart as Zambia Bourne 1931 and Papua New Guinea Payers 1971 In the Burma survey Irrawaddy delta several forest types were identified from the photographs at a scale of 1 20000 MEXICAN FORESTERS ENGAGED IN AERIAL SURVEY WORK Rockets are not absolutely essential Establishing the approach These early surveys using aerial photographs helped to establish an approach to
Image Dimensions: 486 x 339
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