. . . . . . . . "Surveying and land economy in the Commonwealth a description of the professions of surveying and land economy, the problems experienced in their advancement in developing countries, and the facilities required for education and training in these fields"@en . . "Surveying and land economy in the Commonwealth : a description of the professions of surveying and land economy, the problems experienced in their advancement in developing countries, and the facilities required for education and training in these fields" .