APA (7th ed.) Citation

Shoghi, E. (2006). The World Order of Bahá'u'lláh. Project Gutenberg.

Chicago Style (17th ed.) Citation

Shoghi, Effendi. The World Order of Bahá'u'lláh. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Shoghi, Effendi. The World Order of Bahá'u'lláh. Project Gutenberg, 2006.

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