(2015). Tunnel option one of four for 1-81 replacement. Mining Engineering, 67(6), 4.
Chicago Style (17th ed.) Citation"Tunnel Option One of Four for 1-81 Replacement." Mining Engineering 67, no. 6 (2015): 4.
MLA (9th ed.) Citation"Tunnel Option One of Four for 1-81 Replacement." Mining Engineering, vol. 67, no. 6, 2015, p. 4.
Warning: These citations may not always be 100% accurate.
