Gaya APA
HAHN, H.
(2000.).
Harley Hahn's internet & web yellow pages
(
melenium)
.
Barkeley:
Osborne, McGraw-Hill.
Gaya MLA
HAHN, Harley.
"Harley Hahn's internet & web yellow pages".
melenium
Barkeley:
Osborne, McGraw-Hill,
2000..
Buku.