APA-referens

M.K.Singh. (2009). Renewable sources of energy. ALP books.

Chicago-stil citat

M.K.Singh. Renewable Sources of Energy. New Delhi: ALP books, 2009.

MLA-referens

M.K.Singh. Renewable Sources of Energy. ALP books, 2009.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.