Notes: | Restrictions unspecified Some volumes cover more than one report period. Electronic reproduction. [Place of publication not identified] : HathiTrust Digital Library, 2017. 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 Prepared by Mining & Mineral Statistics Division. digitized 2017 HathiTrust Digital Library committed to preserve Description based on: 1999/00. Description based on print version record. Latest issue consulted: 2012/13.
|