(1930). Transactions of the American Geophysical Union.: Tenth Annual Meeting, April 25 and 26 1929 Eleventh Annual Meeting. May 1 and 2. 1930 / Twelfth Annual Meeting April 30 and May i. 1931 / Sixteenth Annual Meeting April 25 and 26. 1935. The National Academy of Sciences.
Cita Chicago Style (17a ed.)Transactions of the American Geophysical Union.: Tenth Annual Meeting, April 25 and 26 1929 Eleventh Annual Meeting. May 1 and 2. 1930 / Twelfth Annual Meeting April 30 and May I. 1931 / Sixteenth Annual Meeting April 25 and 26. 1935. Washington: The National Academy of Sciences, 1930.
Cita MLA (9a ed.)Transactions of the American Geophysical Union.: Tenth Annual Meeting, April 25 and 26 1929 Eleventh Annual Meeting. May 1 and 2. 1930 / Twelfth Annual Meeting April 30 and May I. 1931 / Sixteenth Annual Meeting April 25 and 26. 1935. The National Academy of Sciences, 1930.
