APA (7th ed.) Citation

Shoghi, E. (2006). The Light of Divine Guidance (Volume 1). Project Gutenberg.

Chicago Style (17th ed.) Citation

Shoghi, Effendi. The Light of Divine Guidance (Volume 1). Project Gutenberg, 2006.

MLA (9th ed.) Citation

Shoghi, Effendi. The Light of Divine Guidance (Volume 1). Project Gutenberg, 2006.

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