Gaya APA

Brueckner, L, J., L, I, M, E. (NULL). Using number ideas 5 . New: New York: Holt, Rinehart and Winston; 1961.

Gaya MLA

Brueckner, Leo, J., L, I., Merton,, Elda. "Using number ideas 5". New: New York: Holt, Rinehart and Winston; 1961, NULL. Text.