Goode, W. J., & Hatt, P. K. (1981). Methods in social research. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Goode, William J., agus Paul K. Hatt. Methods in Social Research. Auckland: McGraw-Hill, 1981.
Lua MLA (9ú heag.)Goode, William J., agus Paul K. Hatt. Methods in Social Research. McGraw-Hill, 1981.
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