Note 38 — V
Reading edition
United States Bureau of Labor Statistics Monthly Labor Review, vol. ix (July, 1919), p. 4. The analogy is drawn between the sale of food by calorie and the sale of coal by the British thermal unit.
Reading edition
United States Bureau of Labor Statistics Monthly Labor Review, vol. ix (July, 1919), p. 4. The analogy is drawn between the sale of food by calorie and the sale of coal by the British thermal unit.