Gaya APA
Heitzman, William R.. (1980).
Statistics for business and economics (text).
Boston:
Allyn and Bacon.
Gaya Chicago
Heitzman, William R..
Statistics for business and economics.
text
Boston:
Allyn and Bacon,
1980.
.
Gaya MLA
Heitzman, William R..
Statistics for business and economics.
text
Boston:
Allyn and Bacon,
1980.
.
Gaya Turabian
Heitzman, William R..
Statistics for business and economics.
text
Boston:
Allyn and Bacon,
1980.
.