APA (7th ed.) Citation

The world's great classics: Walden. Grolier Entreprises Corp.

Chicago Style (17th ed.) Citation

The World's Great Classics: Walden. Danbury: Grolier Entreprises Corp.

MLA (9th ed.) Citation

The World's Great Classics: Walden. Grolier Entreprises Corp.

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