Farrell J.H. (1912). Practical field geology: Including a guide to the sight recognition of one hundred and twenty common or important minerals. McGraw-Hill.
Чикаго маягийн жагсаалтFarrell J.H. Practical Field Geology: Including a Guide to the Sight Recognition of One Hundred and Twenty Common or Important Minerals. New York: McGraw-Hill, 1912.
MLA ишлэлFarrell J.H. Practical Field Geology: Including a Guide to the Sight Recognition of One Hundred and Twenty Common or Important Minerals. McGraw-Hill, 1912.
Warning: These citations may not always be 100% accurate.