Gaya APA
Statistik Gas Kota = City Gas Statistics 1991-1995. (1996).
Jakarta:
BPS.
Gaya Chicago
Statistik Gas Kota = City Gas Statistics 1991-1995.
.
Jakarta:
BPS,
1996.
.
Gaya MLA
Statistik Gas Kota = City Gas Statistics 1991-1995.
.
Jakarta:
BPS,
1996.
.
Gaya Turabian
Statistik Gas Kota = City Gas Statistics 1991-1995.
Jakarta:
BPS,
1996.
.