Dyfyniad APA

 Isham, J. (2007).  Ignition: What you can do to fight global warming and spark a movement.  Island Press.

Dyfyniad Arddull Chicago

 Isham, Jonathan.  Ignition: What You Can Do to Fight Global Warming and Spark a Movement.  Island Press, 2007.

Dyfyniad MLA

 Isham, Jonathan.  Ignition: What You Can Do to Fight Global Warming and Spark a Movement.  Island Press, 2007.

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