Lerner , J. J. (1976). Schaum's Outline Of Theory And Problems Of Introduction To Business Joel J. Lerner And Ha. Baker. McGraw-Hill.
Chicago-viite (17. p.)Lerner , Joel J. Schaum's Outline Of Theory And Problems Of Introduction To Business Joel J. Lerner And Ha. Baker. McGraw-Hill, 1976.
MLA-viite (8. p.)Lerner , Joel J. Schaum's Outline Of Theory And Problems Of Introduction To Business Joel J. Lerner And Ha. Baker. McGraw-Hill, 1976.
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