Dyfyniad APA

Poonia M.P. & Sharma S.C. (2023). Environmental Studies (03rd.). Khanna Publications.

Dyfyniad Arddull Chicago

Poonia M.P. & Sharma S.C. Environmental Studies. 03rd. New Delhi: Khanna Publications, 2023.

Dyfyniad MLA

Poonia M.P. & Sharma S.C. Environmental Studies. 03rd. Khanna Publications, 2023.

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