Gaya APA

Sørensen, B. (2004). (E-BOOK Teknik Mesin) Renewable Energy Its physics, engineering, use, environmental impacts, economy and planning aspects Third Edition (3). USA: Elsevier Science.

Gaya MLA

Sørensen, Bent. "(E-BOOK Teknik Mesin) Renewable Energy Its physics, engineering, use, environmental impacts, economy and planning aspects Third Edition". 3 USA: Elsevier Science, 2004. Computer File.