Hearnshaw, J. B. The measurement of starlight : two centuries of astronomical photometry / J. B. Hearnshaw - Cambridge : Cambridge University Press, 1996 - 511 p. : ill. ; 24 cm. includes index. ISBN: 0521403936 RM299.00 LCCN: 95-34046 Subjects--Topical Terms: Astronomical photometry--HistoryStars--Photographic measurements--History