Gaya APA
DEWEY, M. (2011).
DEWEY DECIMAL CLASSIFICATION VOLUME 1 (23).
Dublin USA:
OCLC ( Online Cmputer Libar Center, INC ).
Gaya MLA
DEWEY, Melvil.
"DEWEY DECIMAL CLASSIFICATION VOLUME 1".
23
Dublin USA:
OCLC ( Online Cmputer Libar Center, INC ),
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