Penman, D., & Penman, J. S. (1951). The principles and practice of mine ventilation: Being a treatise on modern methods of mine ventilation, with a consideration of deep mine problems, explosions, fires, rescue and recovery work and cognate subjects (2d ed., rev. and re-set.). C. Griffin.
Chicago Style (17th ed.) CitationPenman, David, and J. S. Penman. The Principles and Practice of Mine Ventilation: Being a Treatise on Modern Methods of Mine Ventilation, with a Consideration of Deep Mine Problems, Explosions, Fires, Rescue and Recovery Work and Cognate Subjects. 2d ed., rev. and re-set. London: C. Griffin, 1951.
MLA (9th ed.) CitationPenman, David, and J. S. Penman. The Principles and Practice of Mine Ventilation: Being a Treatise on Modern Methods of Mine Ventilation, with a Consideration of Deep Mine Problems, Explosions, Fires, Rescue and Recovery Work and Cognate Subjects. 2d ed., rev. and re-set. C. Griffin, 1951.