Schach, R., Garshol, K., & Heltzen, A. M. (1979). Rock bolting: A practical handbook. Pergamon Press.
Chicago Style (17th ed.) CitationSchach, R., K. Garshol, and A. M. Heltzen. Rock Bolting: A Practical Handbook. Oxford: Pergamon Press, 1979.
MLA (9th ed.) CitationSchach, R., et al. Rock Bolting: A Practical Handbook. Pergamon Press, 1979.
Warning: These citations may not always be 100% accurate.