Gaya APA
Badil, R.
(2010).
Norman Edwin : catatan sahabat sang alam
.
Jakarta:
Kepustakaan Populer Gramedia.
Gaya MLA
Badil, Rudy.
"Norman Edwin : catatan sahabat sang alam".
Jakarta:
Kepustakaan Populer Gramedia,
2010.
Book.