Gaya APA
Leabo, Dick A.. (1970).
Basic statistics (3rd. ed).
Homewood:
Irwin.
Gaya Chicago
Leabo, Dick A..
Basic statistics.
3rd. ed
Homewood:
Irwin,
1970.
Text.
Gaya MLA
Leabo, Dick A..
Basic statistics.
3rd. ed
Homewood:
Irwin,
1970.
Text.
Gaya Turabian
Leabo, Dick A..
Basic statistics.
3rd. ed
Homewood:
Irwin,
1970.
Print.