Dyfyniad APA

Shivanand Nautiyal. (2012). Paryavaran: Samasya aur samadhan. Samayik Prakashan.

Dyfyniad Arddull Chicago

Shivanand Nautiyal. Paryavaran: Samasya Aur Samadhan. New Delhi: Samayik Prakashan, 2012.

Dyfyniad MLA

Shivanand Nautiyal. Paryavaran: Samasya Aur Samadhan. Samayik Prakashan, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.