एपीए उद्धरण

Harish Kuamar. (2002). Encyclopaedia of energy resources and their management. Ivy.

शिकागो स्टाइल उद्धरण

Harish Kuamar. Encyclopaedia of Energy Resources and Their Management. Delhi: Ivy, 2002.

एमएलए उद्धरण

Harish Kuamar. Encyclopaedia of Energy Resources and Their Management. Ivy, 2002.