Hoaas, David, Christensen, Harold Study Guide with Practice Tests to Accompany Principles of Economics,
Prentice Hall, 1989, 220 с., 0-13-223505-6.
Hoaas, David, Christensen, Harold .
Study Guide with Practice Tests to Accompany Principles of Economics.
Englewood Cliffs, New Jersey: Prentice Hall, 1989, 220 с., 0-13-223505-6.
Hoaas, David, Christensen, Harold (1989)
Study Guide with Practice Tests to Accompany Principles of Economics,
Englewood Cliffs, New Jersey: Prentice Hall, 220 с., 0-13-223505-6
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