APA
Vini A., Silvey L., . (1978). Mathematics and humor. Reston Va: National Council of Teachers of Mathematics.
Chicago
Vini Aggie, Silvey Linda, . 1978. Mathematics and humor. Reston Va: National Council of Teachers of Mathematics.
Harvard
Vini A., Silvey L., . (1978). Mathematics and humor. Reston Va: National Council of Teachers of Mathematics.
MLA
Vini Aggie, Silvey Linda, . Mathematics and humor. Reston Va: National Council of Teachers of Mathematics. 1978.