APA
Heady E. a. O. (., Heady E. a. O. (., . (1952). Substitution Relationships, Resource Requirements and Income Variability in the utilization of for rage crops. U.S: Bureau of Agriculture Economics.
Chicago
Heady E.O and Olson (R.O), Heady E.O and Olson (R.O), . 1952. Substitution Relationships, Resource Requirements and Income Variability in the utilization of for rage crops. U.S: Bureau of Agriculture Economics.
Harvard
Heady E. a. O. (., Heady E. a. O. (., . (1952). Substitution Relationships, Resource Requirements and Income Variability in the utilization of for rage crops. U.S: Bureau of Agriculture Economics.
MLA
Heady E.O and Olson (R.O), Heady E.O and Olson (R.O), . Substitution Relationships, Resource Requirements and Income Variability in the utilization of for rage crops. U.S: Bureau of Agriculture Economics. 1952.
