Gaya APA
Eckersley, C. E, Kaufmann, W. (1969).
English And American Business Letters .
:
Longmans.
Gaya Chicago
Eckersley, C. E, Kaufmann, W.
English And American Business Letters.
:
Longmans,
1969.
Buku Teks.
Gaya MLA
Eckersley, C. E, Kaufmann, W.
English And American Business Letters.
:
Longmans,
1969.
Buku Teks.
Gaya Turabian
Eckersley, C. E, Kaufmann, W.
English And American Business Letters.
:
Longmans,
1969.
Buku Teks.