Gaya APA
Johnson, Robert. (1984).
Elementary statistics (4th ed).
Boston:
PWS-Kent.
Gaya Chicago
Johnson, Robert.
Elementary statistics.
4th ed
Boston:
PWS-Kent,
1984.
Text.
Gaya MLA
Johnson, Robert.
Elementary statistics.
4th ed
Boston:
PWS-Kent,
1984.
Text.
Gaya Turabian
Johnson, Robert.
Elementary statistics.
4th ed
Boston:
PWS-Kent,
1984.
Print.