Gaya APA
Foundation of behavioral research. (1973).
New York:
Holt Rinehart & Winston.
Gaya Chicago
Foundation of behavioral research.
2nd.
New York:
Holt Rinehart & Winston,
1973.
Buku.
Gaya MLA
Foundation of behavioral research.
2nd.
New York:
Holt Rinehart & Winston,
1973.
Buku.
Gaya Turabian
Foundation of behavioral research.
New York:
Holt Rinehart & Winston,
1973.
Buku.