Gaya APA
Hurrey, P. (2004).
(E-BOOK Teknik Mesin) Build a solar hydrogen fuel cell system .
Amerika:
Wheelock Mountain Publication.
Gaya MLA
Hurrey, Phillip.
"(E-BOOK Teknik Mesin) Build a solar hydrogen fuel cell system".
Amerika:
Wheelock Mountain Publication,
2004.
Computer File.