APA-čujuhus (7. p.)
Madison, B. L., & Hart, T. A. (1990). A challenge of numbers: People in the mathematical sciences. National Academy Press.
Chicago-čujuhus (17. p.)
Madison, Bernard L., juo Therese A. Hart. A Challenge of Numbers: People in the Mathematical Sciences. Washington, D.C.: National Academy Press, 1990.
MLA-čujuhus (9. p.)
Madison, Bernard L., juo Therese A. Hart. A Challenge of Numbers: People in the Mathematical Sciences. National Academy Press, 1990.
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