-
1Primary Source
المؤلفون: Train, Arthur, Wood, Robert Williams
المصدر: Man Who Rocked the Earth; 3/ 1/2008, p7-10, 4p
مصطلحات موضوعية: ASTRONOMICAL observatories, ASTRONOMERS, STAR observations, EARTHQUAKES, TIME measurements
المؤلفون: Train, Arthur, Wood, Robert Williams
المصدر: Man Who Rocked the Earth; 3/ 1/2008, p7-10, 4p
مصطلحات موضوعية: ASTRONOMICAL observatories, ASTRONOMERS, STAR observations, EARTHQUAKES, TIME measurements