Cita APA (7a ed.)

Hubbard, L. R. (2007). The Problam of work ; scientology applied to the workday world. New Era.

Cita Chicago Style (17a ed.)

Hubbard, L. Ron. The Problam of Work ; Scientology Applied to the Workday World. [s.l]: New Era, 2007.

Cita MLA (9a ed.)

Hubbard, L. Ron. The Problam of Work ; Scientology Applied to the Workday World. New Era, 2007.