Schutt, R. K. (1999). Investigating the social world: The process and practice of research (2nd ed.). Pine Forge Press.
芝加哥风格引文Schutt, Russell K. Investigating the Social World: The Process and Practice of Research. 2nd ed. Thousand Oaks, Calif: Pine Forge Press, 1999.
MLA引文Schutt, Russell K. Investigating the Social World: The Process and Practice of Research. 2nd ed. Pine Forge Press, 1999.
警告：这些引文格式不一定是100％准确.