Clark, William C.2022-02-232006Clark, William C. "Cleaner, Cheaper, Safer." Environment No Volume.https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37370882Cleaner, Cheaper, Safer2022-02-23Clark, W.C. 2006, "Cleaner, Cheaper, Safer", Environment, vol. 48, no. 2, pp. i.