Lipsey,Richard G, & Peacock,Edward. (1963). An introduction to positive economics (5 & 7.). English Language Book Society.
Chicago-стиль цитированияLipsey,Richard G, and Peacock,Edward. An Introduction to Positive Economics. 5 & 7. London: English Language Book Society, 1963.
MLA-цитированиеLipsey,Richard G, and Peacock,Edward. An Introduction to Positive Economics. 5 & 7. English Language Book Society, 1963.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.