Gaya APA

BLUMAN, A, G. (2018). ELEMENTARY STATISTICS : A STEP BY STEP APPROACH TENTH EDITION (ED. 10). NEW YORK: Mc Graw Hill.

Gaya MLA

BLUMAN, ALLAN, G.. "ELEMENTARY STATISTICS : A STEP BY STEP APPROACH TENTH EDITION". ED. 10 NEW YORK: Mc Graw Hill, 2018. Text.