DixonDonald F. and McLaughlinDaniel J.Jr., “Do the Inner City Poor Pay More for Food?” Economics and Business Bulletin, Temple University, 20 (Spring 1969), 6–12.
2.
GoodmanCharles S., “Do the Poor Pay More?” Journal of Marketing, 32 (January 1968), 18–24.
3.
HastingsGlenn E. and KunnesRichard, “Predicting Prescription Prices,” The New England Journal of Medicine, 277 (September 21, 1967), 625–8.
4.
JacksonCarolyn and VeltenTerri, “Residence, Race, and Age of Poor Families,” Social Security Bulletin, 32 (June 1969), 3–11.
5.
The Lilly Digest 1968, Indianapolis: Eli Lilly and Co., 1969.
6.
National Prescription Audit, Dedham, Mass.: R. A. Gosselin and Co., 1968.
7.
“The Inner City Poor Found to Pay More for Food than Others,” Wall Street Journal, (September 10, 1968), 1.
8.
WinerB. J., Statistical Principles in Experimental Design, New York: McGraw-Hill, 1962, Chapters 5 and 6.
