Duffy, J. (1876). Letter on diamond drill.
Chicago Style (17th ed.) CitationDuffy, John. Letter on Diamond Drill. 1876.
MLA (9th ed.) CitationDuffy, John. Letter on Diamond Drill. 1876.
Warning: These citations may not always be 100% accurate.
Duffy, J. (1876). Letter on diamond drill.
Chicago Style (17th ed.) CitationDuffy, John. Letter on Diamond Drill. 1876.
MLA (9th ed.) CitationDuffy, John. Letter on Diamond Drill. 1876.