Martin, R. S., & Miller, R. G. (1966). Prologue to economic understanding. C. E. Merrill Books.
Lua i Stíl Chicago (17ú heag.)Martin, Richard S., agus Reuben G. Miller. Prologue to Economic Understanding. Columbus, OH: C. E. Merrill Books, 1966.
Lua MLA (9ú heag.)Martin, Richard S., agus Reuben G. Miller. Prologue to Economic Understanding. C. E. Merrill Books, 1966.
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