Gaya APA
Holtz, Herman R. (1987).
THE CONSULTANT'S GUIDE TO NEWSLETTER PROFITS .
Illinois:
Dow Jones.
Gaya Chicago
Holtz, Herman R.
THE CONSULTANT'S GUIDE TO NEWSLETTER PROFITS.
Illinois:
Dow Jones,
1987.
Text.
Gaya MLA
Holtz, Herman R.
THE CONSULTANT'S GUIDE TO NEWSLETTER PROFITS.
Illinois:
Dow Jones,
1987.
Text.
Gaya Turabian
Holtz, Herman R.
THE CONSULTANT'S GUIDE TO NEWSLETTER PROFITS.
Illinois:
Dow Jones,
1987.
Print.