APA (7th ed.) Citation

George, A. I. (2005). Mammoth Cave saltpeter works. H.M.I. Press.

Chicago Style (17th ed.) Citation

George, Angelo I. Mammoth Cave Saltpeter Works. Louisville, Ky: H.M.I. Press, 2005.

MLA (9th ed.) Citation

George, Angelo I. Mammoth Cave Saltpeter Works. H.M.I. Press, 2005.

Warning: These citations may not always be 100% accurate.