Gaya APA
pusat, B, P, M, B.
(1971).
IUD (Intra Uterine Device)
.
Jakarta:
BKKBN.
Gaya MLA
pusat, Biro, Pelayanan, Medis, BKKBN.
"IUD (Intra Uterine Device)".
Jakarta:
BKKBN,
1971.
Text.