Gaya APA
Schuller, Robert H.. (1980).
The peak to peek principle .
New York:
A Jove Book.
Gaya Chicago
Schuller, Robert H..
The peak to peek principle.
New York:
A Jove Book,
1980.
Text.
Gaya MLA
Schuller, Robert H..
The peak to peek principle.
New York:
A Jove Book,
1980.
Text.
Gaya Turabian
Schuller, Robert H..
The peak to peek principle.
New York:
A Jove Book,
1980.
Print.