Treatise on trigonometry by W.E. Johnson. Johnson, W. E. (William Ernest) Trigonometry. QA535 .J71 1889 514 JOT 19 Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2010. 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 2010 HathiTrust Digital Library committed to preserve pda MiAaHDL Description based on print version record. London : Macmillan, 1889. 2010. 1889. 1889 Text xvii, 504 p. : http://catalog.hathitrust.org/api/volumes/oclc/9356025.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 Treatise on trigonometry. Treatise on trigonometry. Use copy Restrictions unspecified star MiAaHDL