Gaya APA
Harris, J.
(1993).
ACTIVE ENGLISH FOR BUSINESS
(
Cet. 1)
.
[s.l]:
Marsek Pers.
Gaya MLA
Harris, John.
"ACTIVE ENGLISH FOR BUSINESS".
Cet. 1
[s.l]:
Marsek Pers,
1993.
Buku.