Foster, J. A short course in general relativity / by J. Foster and J.D. Nightingale. - New York : Longman, 1979. - xv, 192 p. : ill. ; 22 cm. - Longman mathematical texts. . Includes index. Bibliography: p. [187]-188. ISBN: 0582441943 Subjects--Topical Terms: General relativity (Physics).