Gaya APA
Dewey, M. (1971).
Dewey Decimal Classification and Relative index. Ed.18 Volume 1 (cet. 1).
New York:
Forest Press, INC.
Gaya MLA
Dewey, M..
Dewey Decimal Classification and Relative index. Ed.18 Volume 1.
cet. 1
New York:
Forest Press, INC,
1971.
Lawas.