SWALLOW, R. A. creator NAYLOR, E. text xx London Heinemann 1986 9999 \\ 11th ed. monographic und 418p. R. A. Swallow, E. Naylor (Eds.) Radiography, radioscopy, radiodiagnosis, skiagraphy, tomography.;Gamma rays.;Grenz rays.;Natural science;Radiology and Atomic Energy;X-rays in diagnosis, and in biological research (the study of the diseased and normal organism).;Roentgen rays (X-rays).;X 433188383 Ahmadu Bello University Library - Zaria 180412