Dyfyniad APA

Deway, M. Dewey Decimal classification and relative Index (Ed.19.).

Dyfyniad Arddull Chicago

Deway, Melvil. Dewey Decimal Classification and Relative Index. Ed.19. New York, OCLC Online Computer LIbrary Centre.

Dyfyniad MLA

Deway, Melvil. Dewey Decimal Classification and Relative Index. Ed.19.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.