Gaya APA
Understanding statistics. (1977).
:
McGraw-Hill Book Company.
Gaya Chicago
Understanding statistics.
.
:
McGraw-Hill Book Company,
1977.
Text.
Gaya MLA
Understanding statistics.
.
:
McGraw-Hill Book Company,
1977.
Text.
Gaya Turabian
Understanding statistics.
:
McGraw-Hill Book Company,
1977.
Print.