Bulletin of the Pan American Union : vol. 97 / Pan American Union. Pan American Union. Pan American Union Periodicals. 352.5 UNB includes index. Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2011. MiAaHDL 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 2011 HathiTrust Digital Library committed to preserve pda MiAaHDL Description based on print version record. Washington, D.C. : Pan American Union, 1921. 2011. 1921. 1921 Text Collection vol. 40 : http://catalog.hathitrust.org/api/volumes/oclc/220726766.html eng 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 Use copy Restrictions unspecified star MiAaHDL