APA (7th ed.) Citation

United States. President (1923-1929 : Coolidge). (1927). Address of President Coolidge before 1st International Congress of Soil Science, Washington, D.C. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. President (1923-1929 : Coolidge). Address of President Coolidge Before 1st International Congress of Soil Science, Washington, D.C. Washington: U.S. GPO, 1927.

MLA (9th ed.) Citation

United States. President (1923-1929 : Coolidge). Address of President Coolidge Before 1st International Congress of Soil Science, Washington, D.C. U.S. GPO, 1927.

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