"id","author_first1","author_last1","title","year","publisher","place","author_first2","author_last2","author_first3","author_last3","keyword0","keyword1","keyword2","keyword3","keyword4","keyword5","keyword6","keyword7","type" "788","Hans","Steffen","Final Report of the Airphoto Interpretation Project of the Swiss Technical Co-Operation Service, Berne","1978","Swiss Technical Co-Operation Service and the Central Planning Organization","Zurich and ana","Werner","Dubach","U.","Geiser","Census","Education","Geography","Government","History","Literacy","Physical","YAR","book"