Dyfyniad APA

Ehrlich, R. (2001). Nine crazy ideas in science: A few might even be true. Princeton University Press.

Dyfyniad Arddull Chicago

Ehrlich, Robert. Nine Crazy Ideas in Science: A Few Might Even Be True. Princeton, N.J.: Princeton University Press, 2001.

Dyfyniad MLA

Ehrlich, Robert. Nine Crazy Ideas in Science: A Few Might Even Be True. Princeton University Press, 2001.

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