Gaya APA
Stevenson, S, C.
(2009).
Profitable Direct Mail Appeals
(
Edisi Kedua)
.
Sioux:
Stevenson.inc.
Gaya MLA
Stevenson, Scott, C..
"Profitable Direct Mail Appeals".
Edisi Kedua
Sioux:
Stevenson.inc,
2009.
Texts.