Rao, D. V. L. N A study of the hourly wind speeds at amritsar from the point of view of world power Utlization / D. V. L. N. Rao and K. N. Narasimhaswamy - Bangalore : National Aeronautical Labaratory, 1963 - 17 p. : ill ; 28 cm. Dewey Class. No.: 621.45