Penggayaan APA
STILL, Richard R. (1981).
Sales management : (4th.ed).
New Jersey:
Prentice Hall.
Chicago Style
STILL, Richard R.
Sales management :.
4th.ed
New Jersey:
Prentice Hall,
1981.
Buku.
MLA Style
STILL, Richard R.
Sales management :.
4th.ed
New Jersey:
Prentice Hall,
1981.
Buku.
Turabian Style
STILL, Richard R.
Sales management :.
4th.ed
New Jersey:
Prentice Hall,
1981.
Buku.