Gaya APA
WILLIAMS, R, I., DORIS, L. (1956).
Encyclopedia of accounting systems: .
Englewood Cliffs:
N.J. Prentice-Hall.
Gaya MLA
WILLIAMS, Robert, I., DORIS, Lillian.
"Encyclopedia of accounting systems:".
Englewood Cliffs:
N.J. Prentice-Hall,
1956.
Buku.