Cita APA (7th ed.)
Srivastava,Smriti. Environment and ecology (2nd ed.). S.K.Kataria 628 Sr774e2 2nd ed.
Cita Chicago (17th ed.)
Srivastava,Smriti. Environment and Ecology. 2nd ed. New Delhi: S.K.Kataria 628 Sr774e2 2nd ed.
Cita MLA (9th ed.)
Srivastava,Smriti. Environment and Ecology. 2nd ed. S.K.Kataria 628 Sr774e2 2nd ed.
Atenció: Aquestes cites poden no estar 100% correctes.