Dyfyniad APA

Shukla, S. K., & Srivastava, P. R. (1997). Encyclopaedia of environmental pollution: Industrial pollution and environmental issues. Commonwealth.

Dyfyniad Arddull Chicago

Shukla, S. K., and P. R. Srivastava. Encyclopaedia of Environmental Pollution: Industrial Pollution and Environmental Issues. New Delhi: Commonwealth, 1997.

Dyfyniad MLA

Shukla, S. K., and P. R. Srivastava. Encyclopaedia of Environmental Pollution: Industrial Pollution and Environmental Issues. Commonwealth, 1997.

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