APA (7th ed.) Citation

Hubbard, L. R. (1987). The Doomed Planet. Bridge Publications, Inc..

Chicago Style (17th ed.) Citation

Hubbard, L. Ron. The Doomed Planet. Los Angeles: Bridge Publications, Inc., 1987.

MLA (9th ed.) Citation

Hubbard, L. Ron. The Doomed Planet. Bridge Publications, Inc., 1987.

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