Cita APA (7a ed.)
International journal of environmental sciences [Int J Environ Sci] NLMUID: 101585104.
Cita Chicago Style (17a ed.)
International Journal of Environmental Sciences [Int J Environ Sci] NLMUID: 101585104.
Cita MLA (9a ed.)
International Journal of Environmental Sciences [Int J Environ Sci] NLMUID: 101585104.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.