Frost, P. J., & Stablein, R. E. (1992). Doing exemplary research. Sage.
Chicago Style aipamenaFrost, Peter J., and Ralph E. Stablein. Doing Exemplary Research. Newbury Park, Calif: Sage, 1992.
MLA aipamenaFrost, Peter J., and Ralph E. Stablein. Doing Exemplary Research. Sage, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.