The Mean Density of the Earth. An Essay to Which the Adams Prize Was Adjudged in 1893 in the University of CambridgeJ. Poynting1894EN
Monthly and seasonal mean global charts of brightness from ESSA 3 and ESSA 5 digitized pictures, February 1967-February 1968 / V. Ray Taylor and Jay S. Winston.V R Taylor, Jay S Winston & 2 more1968EN
Looking for a City in America: Down These Mean Streets a Man Must Go : An Essay (Angel's Flight, Occasional Papers from Los Angeles, No 1)André Corboz1992PDF