APA
Royal Institution of Chartered Surveyors, . (1984). Land surveyors information package 7: the gravity field of the Earth. London: RICS.
Chicago
Royal Institution of Chartered Surveyors, . 1984. Land surveyors information package 7: the gravity field of the Earth. London: RICS.
Harvard
Royal Institution of Chartered Surveyors, . (1984). Land surveyors information package 7: the gravity field of the Earth. London: RICS.
MLA
Royal Institution of Chartered Surveyors, . Land surveyors information package 7: the gravity field of the Earth. London: RICS. 1984.