APA
Spiegel H. W., . (1983). Growth of economic thought. North Carolina: Duke University Press.
Chicago
Spiegel Henry William, . 1983. Growth of economic thought. North Carolina: Duke University Press.
Harvard
Spiegel H. W., . (1983). Growth of economic thought. North Carolina: Duke University Press.
MLA
Spiegel Henry William, . Growth of economic thought. North Carolina: Duke University Press. 1983.