APA (7th ed.) Citation

(1929). Transactions of the American Geophysical Union...Ninth Annual Meeting, April 26 and 27, 1928. The National Academy of Sciences.

Chicago Style (17th ed.) Citation

Transactions of the American Geophysical Union...Ninth Annual Meeting, April 26 and 27, 1928. Washington: The National Academy of Sciences, 1929.

MLA (9th ed.) Citation

Transactions of the American Geophysical Union...Ninth Annual Meeting, April 26 and 27, 1928. The National Academy of Sciences, 1929.

Warning: These citations may not always be 100% accurate.