APA (7th ed.) Citation

Der Ling, P. (1997). Two Years in the Forbidden City. Project Gutenberg.

Chicago Style (17th ed.) Citation

Der Ling, Princess. Two Years in the Forbidden City. Project Gutenberg, 1997.

MLA (9th ed.) Citation

Der Ling, Princess. Two Years in the Forbidden City. Project Gutenberg, 1997.

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