Dyfyniad APA

(1972). Water pollution control in Japan. Japan: Environment Agency.

Dyfyniad Arddull Chicago

Water Pollution Control in Japan. Japan: Environment Agency, 1972.

Dyfyniad MLA

Water Pollution Control in Japan. Japan: Environment Agency, 1972.

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