Dyfyniad APA

Balakrishnan, M. (1988). Environmental issues: Problems and solutions.

Dyfyniad Arddull Chicago

Balakrishnan, M. Environmental Issues: Problems and Solutions. University of Kerala, TVPM, 1988.

Dyfyniad MLA

Balakrishnan, M. Environmental Issues: Problems and Solutions. 1988.

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