Gaya APA
Schoell, William F. (1990).
Marketing: contemporary , concept and practice (4).
USA:
Irwin.
Gaya Chicago
Schoell, William F.
Marketing: contemporary , concept and practice.
4
USA:
Irwin,
1990.
Text.
Gaya MLA
Schoell, William F.
Marketing: contemporary , concept and practice.
4
USA:
Irwin,
1990.
Text.
Gaya Turabian
Schoell, William F.
Marketing: contemporary , concept and practice.
4
USA:
Irwin,
1990.
Print.