Citazione Stile APA (7a Edizione)

Hubbard, L. R. (2012). Literary: Correspondence letters and journals. Bridge Publications.

Citazione stile Chigago Style (17a edizione)

Hubbard, L. Ron. Literary: Correspondence Letters and Journals. Commerce, Califonia: Bridge Publications, 2012.

Citatione MLA (9a ed.)

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