Dyfyniad APA

Roday, S. (1999). Hygine and sanitation in industry. McGraw-Hill.

Dyfyniad Arddull Chicago

Roday, S. Hygine and Sanitation in Industry. New Delhi: McGraw-Hill, 1999.

Dyfyniad MLA

Roday, S. Hygine and Sanitation in Industry. McGraw-Hill, 1999.

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