Schutt, R. K. Investigating the social world: The process and practice of research (Ninth edition.).
芝加哥风格引文Schutt, Russell K. Investigating the Social World: The Process and Practice of Research. Ninth edition.
MLA引文Schutt, Russell K. Investigating the Social World: The Process and Practice of Research. Ninth edition.
警告：这些引文格式不一定是100％准确.