Перлит (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Перлит" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

low place

low place

1prd-wret.s3-us-west-2.amazonaws.com

low place

low place

167^th place

188^th place

minenergy.am

General Information – Mining Resources – www.minenergy.am // Посетен на 2019-06-10.

prd-wret.s3-us-west-2.amazonaws.com

M. Bennett, Shawnna. USGS Mineral Commodity Summaries – PERLITE

usgs.gov

Perlite Statistics and Information // Посетен на 2019-06-10.