Figures
3.1Attendance at recreation facilities, 1910–1964 (Clawson and Knetsch 1966)
5.2Natural resource prices, 1870–1957 (Potter and Christy 1962)
5.3Employment-to-output ratios in natural resource sectors, 1870–1957 (Potter and Christy 1962)
5.5(a) Economics vs. the environment contrasted with (b) Economics of the environment