APA (7th ed.) Citation

Grabo, C. H. (2007). The Cat in Grandfather's House. Project Gutenberg.

Chicago Style (17th ed.) Citation

Grabo, Carl Henry. The Cat in Grandfather's House. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Grabo, Carl Henry. The Cat in Grandfather's House. Project Gutenberg, 2007.

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