Gaya APA
Robert, W, J.
(1974).
Fundamental of Business Law
(
Cet 1.)
.
Englewood Cliffs:
Prentice- Hall, Inc.
Gaya MLA
Robert, Willian, J..
"Fundamental of Business Law".
Cet 1.
Englewood Cliffs:
Prentice- Hall, Inc,
1974.
Buku.