APA引文

MACHOL, R. E. (1979). Elementary systems mathematics. McGraw-hill.

芝加哥风格引文

MACHOL, Robert E. Elementary Systems Mathematics. New York: McGraw-hill, 1979.

MLA引文

MACHOL, Robert E. Elementary Systems Mathematics. McGraw-hill, 1979.

警告：这些引文格式不一定是100％准确.