Gaya APA
Bluman, A, G.
(2007).
Elementary Statistics : A Step by Step Approuch
(
Ed.6)
.
New York:
Mc Graw Hill.
Gaya MLA
Bluman, Allan, G.
"Elementary Statistics : A Step by Step Approuch".
Ed.6
New York:
Mc Graw Hill,
2007.
Text.