Gaya APA

Hubbard, L. Ron. (1997). L. Ron Hubbard: A profile . California: Bridge Publication.

Gaya Chicago

Hubbard, L. Ron. L. Ron Hubbard: A profile. California: Bridge Publication, 1997. Text.

Gaya MLA

Hubbard, L. Ron. L. Ron Hubbard: A profile. California: Bridge Publication, 1997. Text.

Gaya Turabian

Hubbard, L. Ron. L. Ron Hubbard: A profile. California: Bridge Publication, 1997. Print.