APA (7th ed.) Citation

Graham, W., & Piffard, H. (2008). When the Birds Begin to Sing. Project Gutenberg.

Chicago Style (17th ed.) Citation

Graham, Winifred, and Harold Piffard. When the Birds Begin to Sing. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Graham, Winifred, and Harold Piffard. When the Birds Begin to Sing. Project Gutenberg, 2008.

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