Gaya APA
Internasional.Elsevier, (2011).
Dewey Decimal Classification and Relative Index Vol. 4 : Index Ed.23 (ed. 23).
Dublin- Ohio, USA:
OCLC Online Computer Library Center.
Gaya MLA
Internasional.Elsevier, .
Dewey Decimal Classification and Relative Index Vol. 4 : Index Ed.23.
ed. 23
Dublin- Ohio, USA:
OCLC Online Computer Library Center,
2011.
Text.