BINGHAM, R. C. Economic concepts#a programmed approach#Robert C. Bingham. McGrow Hill Book Company.
Chicago-стиль цитированияBINGHAM, Robert C. Economic Concepts#a Programmed Approach#Robert C. Bingham. McGrow Hill Book Company.
MLA-цитированиеBINGHAM, Robert C. Economic Concepts#a Programmed Approach#Robert C. Bingham. McGrow Hill Book Company.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.