Gaya APA
Webster, Frederick E. (1991).
Industrial marketing strategy (3e).
New York:
John Wiley.
Gaya Chicago
Webster, Frederick E.
Industrial marketing strategy.
3e
New York:
John Wiley,
1991.
Buku.
Gaya MLA
Webster, Frederick E.
Industrial marketing strategy.
3e
New York:
John Wiley,
1991.
Buku.
Gaya Turabian
Webster, Frederick E.
Industrial marketing strategy.
3e
New York:
John Wiley,
1991.
Buku.