APA (7th ed.) Citation

Porto Rico Agricultural Experiment Station. (1913). Studies on acid soils of Porto Rico. U.S. GPO.

Chicago Style (17th ed.) Citation

Porto Rico Agricultural Experiment Station. Studies on Acid Soils of Porto Rico. Washington: U.S. GPO, 1913.

MLA (9th ed.) Citation

Porto Rico Agricultural Experiment Station. Studies on Acid Soils of Porto Rico. U.S. GPO, 1913.

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