APA (7th ed.) Citation

Mortimer, M. (1997). Learn Dewey Decimal Classification (Edition 21). DocMatrix Pty Ltd.

Chicago Style (17th ed.) Citation

Mortimer, Mary. Learn Dewey Decimal Classification (Edition 21). Canberra: DocMatrix Pty Ltd, 1997.

MLA (9th ed.) Citation

Mortimer, Mary. Learn Dewey Decimal Classification (Edition 21). DocMatrix Pty Ltd, 1997.

Warning: These citations may not always be 100% accurate.