Gaya APA
Downie, N.M., Heath, R.W.. (1974).
Basic statistical methods (4th ed).
New York:
Harper and Row.
Gaya Chicago
Downie, N.M., Heath, R.W..
Basic statistical methods.
4th ed
New York:
Harper and Row,
1974.
Text.
Gaya MLA
Downie, N.M., Heath, R.W..
Basic statistical methods.
4th ed
New York:
Harper and Row,
1974.
Text.
Gaya Turabian
Downie, N.M., Heath, R.W..
Basic statistical methods.
4th ed
New York:
Harper and Row,
1974.
Print.