Arnold, R. A., & Roger A. Arnold. (2005). Graphing exercises in economics. Mason, Ohio: Thomson/South-Western.
Chicago-стиль цитированияArnold, Roger A., và Roger A. Arnold. Graphing Exercises in Economics. Mason, Ohio: Thomson/South-Western, 2005.
MLA-цитированиеArnold, Roger A., và Roger A. Arnold. Graphing Exercises in Economics. Mason, Ohio: Thomson/South-Western, 2005.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.