APA (7th ed.) Citation

Bahá'í International Community. (2006). The Prosperity of Humankind. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bahá'í International Community. The Prosperity of Humankind. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Bahá'í International Community. The Prosperity of Humankind. Project Gutenberg, 2006.

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