Tohutoro APA (7th ed.)
De, A. K., & De, A. K. (2001). Environmental studies. New Age International.
Tohutoru Kātū Chicago (17th ed.)
De, Anil Kumar, me Arnab Kumar De. Environmental Studies. Calcutta: New Age International, 2001.
Tohutoro MLA (9th ed.)
De, Anil Kumar, me Arnab Kumar De. Environmental Studies. New Age International, 2001.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.