APA (7th ed.) Citation

Lucia, R. (2011). Peter and Polly in Winter. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lucia, Rose. Peter and Polly in Winter. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Lucia, Rose. Peter and Polly in Winter. Project Gutenberg, 2011.

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