Greg Byrd; Lynn Byrd; Chris Pearce. (2012). Cambridge Checkpoint Mathematics Coursebook 7 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS.
芝加哥风格引文Greg Byrd; Lynn Byrd; Chris Pearce. Cambridge Checkpoint Mathematics Coursebook 7 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2012.
MLA引文Greg Byrd; Lynn Byrd; Chris Pearce. Cambridge Checkpoint Mathematics Coursebook 7 (Cambridge International Examinations). CAMBRIDGE UNIVERSITY PRESS, 2012.
警告：这些引文格式不一定是100％准确.