Gaya APA
Proyek bantuan Austria the integrated air quality management for metropolitan areas / Penyusun : Umar Suyudi. (2002).
:
Jakarta, Bapedal.
Gaya MLA
Proyek bantuan Austria the integrated air quality management for metropolitan areas / Penyusun : Umar Suyudi.
.
:
Jakarta, Bapedal,
2002.
Text.