Mary Jones. (2012). Cambridge Checkpoint Science Workbook 7. CAMBRIDGE UNIVERSITY PRESS.
芝加哥风格引文Mary Jones. Cambridge Checkpoint Science Workbook 7. CAMBRIDGE UNIVERSITY PRESS, 2012.
MLA引文Mary Jones. Cambridge Checkpoint Science Workbook 7. CAMBRIDGE UNIVERSITY PRESS, 2012.
警告：这些引文格式不一定是100％准确.