एपीए उद्धरण

Doolittle, J. S. (1977). Energy: Acrisis, a dilemma or just another problem ? Matrix.

शिकागो स्टाइल उद्धरण

Doolittle, Jesse S. Energy: Acrisis, a Dilemma or Just Another Problem ? Illinois: Matrix, 1977.

एमएलए उद्धरण

Doolittle, Jesse S. Energy: Acrisis, a Dilemma or Just Another Problem ? Matrix, 1977.