Gaya APA
HUBBARD, L. Ron. (2007).
The problems of work .
California:
Bridge Publ..
Gaya Chicago
HUBBARD, L. Ron.
The problems of work.
California:
Bridge Publ.,
2007.
Text.
Gaya MLA
HUBBARD, L. Ron.
The problems of work.
California:
Bridge Publ.,
2007.
Text.
Gaya Turabian
HUBBARD, L. Ron.
The problems of work.
California:
Bridge Publ.,
2007.
Print.