Gaya APA
Healey, Joseph F. (1993).
Statistics : a tool for social research (3e).
Belmont:
Wadsworth.
Gaya Chicago
Healey, Joseph F.
Statistics : a tool for social research.
3e
Belmont:
Wadsworth,
1993.
Buku.
Gaya MLA
Healey, Joseph F.
Statistics : a tool for social research.
3e
Belmont:
Wadsworth,
1993.
Buku.
Gaya Turabian
Healey, Joseph F.
Statistics : a tool for social research.
3e
Belmont:
Wadsworth,
1993.
Buku.