The Determination of Organic Peroxides R. M. Johnson, I. W. Siddiqi E-Book (pdf)

Rockhounding for Beginners Lars W. Johnson, Stephen M. Voynick E-Book (epub)

HBR's 10 Must Reads on Business Model Innovation (with featured article "Reinventing Your Business Model" by Mark W. Johnson, Clayton M. Christensen, and Henning Kagermann) Harvard Business Review, Clayton M. Christensen, Mark W. Johnson E-Book (epub)