Published also as thesis (Ph. D.) Columbia university, 1924
Digitization funded by NEH digital to microfilm conversion project. Title selected from the series Literature of the agricultural sciences for the Core historical literature of agriculture, Agricultural economics and rural sociology
Bibliography
Includes bibliographical references
Notes
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL
digitized 1994 CHLA NIC pda
Print version record
digitized 2020. HathiTrust Digital Library committed to preserve pda MiAaHDL