Cita APA (7th ed.)

Hubbard, L. R. (2012). Literary correspondence: Letters & journals. Bridge Publications.

Cita Chicago (17th ed.)

Hubbard, L. Ron. Literary Correspondence: Letters & Journals. Commerce, California: Bridge Publications, 2012.

Cita MLA (9th ed.)

Hubbard, L. Ron. Literary Correspondence: Letters & Journals. Bridge Publications, 2012.