DENHOLM, R. A., & BLANK, V. Mathematics: Structure and skills. SRA.
芝加哥风格引文DENHOLM, Richard A., 与 V.Dale BLANK. Mathematics: Structure and Skills. Chicago: SRA.
MLA引文DENHOLM, Richard A., 与 V.Dale BLANK. Mathematics: Structure and Skills. SRA.
警告：这些引文格式不一定是100％准确.