Gaya APA
Bio-methane and bio-hydrogen. (2003).
ZG Petten:
Novem.
Gaya Chicago
Bio-methane and bio-hydrogen.
.
ZG Petten:
Novem,
2003.
Text.
Gaya MLA
Bio-methane and bio-hydrogen.
.
ZG Petten:
Novem,
2003.
Text.
Gaya Turabian
Bio-methane and bio-hydrogen.
ZG Petten:
Novem,
2003.
Print.