International Conference on Soil Science. Message from the President of the United States transmitting report by the Secretary of State, concerning a request made by the Secretary of Agriculture that legislation be enacted that will give congressional sanction to the holding of an International Conference on Soil Science in the United States in 1927 [electronic resource].
Record is based on bibliographic data in ProQuest U.S. Serial Set Digital Collection (last viewed Nov. 2007). Reuse except for individual research requires license from ProQuest, LLC. AVAILABLE ONLINE TO AUTHORIZED PSU USERS.
Electronic resource. [Bethesda, Md.]: ProQuest, 2004. (ProQuest U.S. Serial Set Digital Collection : no. 8578 H.doc.120).