APA (7th ed.) Citation

Dewey, M. (2004). A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dewey, Melvil. A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Dewey, Melvil. A Classification and Subject Index for Cataloguing and Arranging the Books and Pamphlets of a Library. Project Gutenberg, 2004.

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