APA (7th ed.) Citation

Orpen, M. G. (2011). Stories about Famous Precious Stones. Project Gutenberg.

Chicago Style (17th ed.) Citation

Orpen, Mrs Goddard. Stories About Famous Precious Stones. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Orpen, Mrs Goddard. Stories About Famous Precious Stones. Project Gutenberg, 2011.

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