Gaya APA
VRIES, MARY A.DE. (1989).
Professional secretary encyclopedic dictionary (4e).
Englewood Cliffs:
Prentice Hall.
Gaya Chicago
VRIES, MARY A.DE.
Professional secretary encyclopedic dictionary.
4e
Englewood Cliffs:
Prentice Hall,
1989.
Buku.
Gaya MLA
VRIES, MARY A.DE.
Professional secretary encyclopedic dictionary.
4e
Englewood Cliffs:
Prentice Hall,
1989.
Buku.
Gaya Turabian
VRIES, MARY A.DE.
Professional secretary encyclopedic dictionary.
4e
Englewood Cliffs:
Prentice Hall,
1989.
Buku.