एपीए उद्धरण

World Energy Conference. Technical Papers 3.2: Enviornment, pollution and safety 3.4 energy education and manpower development.

शिकागो स्टाइल उद्धरण

World Energy Conference. Technical Papers 3.2: Enviornment, Pollution and Safety 3.4 Energy Education and Manpower Development.

एमएलए उद्धरण

World Energy Conference. Technical Papers 3.2: Enviornment, Pollution and Safety 3.4 Energy Education and Manpower Development.