Wasserman, P., & Paskar, J. (1974). Statistics sources: A subject guide to data on industrial, business, social, educational, financial, and other topics for the United States and internationally (4th ed.). Gale Research Co.
Chicago-viite (17. p.)Wasserman, Paul, ja Joanne Paskar. Statistics Sources: A Subject Guide to Data on Industrial, Business, Social, Educational, Financial, and Other Topics for the United States and Internationally. 4th ed. Detroit: Gale Research Co, 1974.
MLA-viite (8. p.)Wasserman, Paul, ja Joanne Paskar. Statistics Sources: A Subject Guide to Data on Industrial, Business, Social, Educational, Financial, and Other Topics for the United States and Internationally. 4th ed. Gale Research Co, 1974.
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