Gaya APA
DEWEY, M. (2003).
Dewey Decimal Classification. DDC 22 vol 4 (Index) (22).
:
Online Computer Library Center, inc.
Gaya MLA
DEWEY, Melvil.
"Dewey Decimal Classification. DDC 22 vol 4 (Index)".
22
:
Online Computer Library Center, inc,
2003.
Printed.