JOHNSONBAUGH RICHARD. (1989). DISCRETE MATHEMATICS. MACMILLAN.
芝加哥风格引文JOHNSONBAUGH RICHARD. DISCRETE MATHEMATICS. LONDON: MACMILLAN, 1989.
MLA引文JOHNSONBAUGH RICHARD. DISCRETE MATHEMATICS. MACMILLAN, 1989.
警告：这些引文格式不一定是100％准确.
APA引文