एपीए उद्धरण

(2008). Peterson’s graduate programs in the physical sciences, mathematics, agricultural sciences, the environment & natural resources. Princeton, N.J: Peterson’s.

शिकागो स्टाइल उद्धरण

Peterson’s Graduate Programs in the Physical Sciences, Mathematics, Agricultural Sciences, the Environment & Natural Resources. Princeton, N.J: Peterson’s, 2008.

एमएलए उद्धरण

Peterson’s Graduate Programs in the Physical Sciences, Mathematics, Agricultural Sciences, the Environment & Natural Resources. Princeton, N.J: Peterson’s, 2008.