Barnett, J. E. (1999). Time's pendulum: From sundials to atomic clocks, the fascinating history of timekeeping and how our discoveries changed the world (1. ed.). Harcourt Brace.
Chicago Style (17th ed.) CitationBarnett, Jo Ellen. Time's Pendulum: From Sundials to Atomic Clocks, the Fascinating History of Timekeeping and How Our Discoveries Changed the World. 1. ed. San Diego [u.a.]: Harcourt Brace, 1999.
MLA (9th ed.) CitationBarnett, Jo Ellen. Time's Pendulum: From Sundials to Atomic Clocks, the Fascinating History of Timekeeping and How Our Discoveries Changed the World. 1. ed. Harcourt Brace, 1999.
Warning: These citations may not always be 100% accurate.