Gaya APA
Howarth, W.
(1989).
Peraturan Badan Pertanahan Nasional 1991
.
Jakarta:
Dharma Bhakti.
Gaya MLA
Howarth, William.
"Peraturan Badan Pertanahan Nasional 1991".
Jakarta:
Dharma Bhakti,
1989.
Text.