एपीए उद्धरण

Thompson, G. (2007). Earth science and environment. Belmont, CA: Thomson Brooks/Cole.

शिकागो स्टाइल उद्धरण

Thompson, Graham. Earth Science and Environment. Belmont, CA: Thomson Brooks/Cole, 2007.

एमएलए उद्धरण

Thompson, Graham. Earth Science and Environment. Belmont, CA: Thomson Brooks/Cole, 2007.