Gaya APA
ELLIS, Robert S. (1951).
Educational Psychology (Cet.1).
USA:
D.Van Nostrand Company.
Gaya Chicago
ELLIS, Robert S.
Educational Psychology.
Cet.1
USA:
D.Van Nostrand Company,
1951.
BUKU.
Gaya MLA
ELLIS, Robert S.
Educational Psychology.
Cet.1
USA:
D.Van Nostrand Company,
1951.
BUKU.
Gaya Turabian
ELLIS, Robert S.
Educational Psychology.
Cet.1
USA:
D.Van Nostrand Company,
1951.
BUKU.