Dyfyniad APA

Harrad, S. (2008). Student projects in environmental science. John Wiley.

Dyfyniad Arddull Chicago

Harrad, Stuart. Student Projects in Environmental Science. Chichester, England ; Hoboken, NJ: John Wiley, 2008.

Dyfyniad MLA

Harrad, Stuart. Student Projects in Environmental Science. John Wiley, 2008.

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