APA (7th ed.) Citation

Heindel, M. (2009). The Rosicrucian Mysteries An Elementary Exposition of Their Secret Teachings. Project Gutenberg.

Chicago Style (17th ed.) Citation

Heindel, Max. The Rosicrucian Mysteries An Elementary Exposition of Their Secret Teachings. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Heindel, Max. The Rosicrucian Mysteries An Elementary Exposition of Their Secret Teachings. Project Gutenberg, 2009.

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