STEINBERG, R. (1986). Prentice-hall's practice tests for the TOEFL. Prentice-Hall.
芝加哥风格引文STEINBERG, Roberta. Prentice-hall's Practice Tests for the TOEFL. Englewood Cliffs: Prentice-Hall, 1986.
MLA引文STEINBERG, Roberta. Prentice-hall's Practice Tests for the TOEFL. Prentice-Hall, 1986.
警告：这些引文格式不一定是100％准确.