Dyfyniad APA

Johansson, P. O. (1994). The economic theory and measurement of enviornmental benefits. Cambridge University Press.

Dyfyniad Arddull Chicago

Johansson, Per- Olov. The Economic Theory and Measurement of Enviornmental Benefits. Cambridge: Cambridge University Press, 1994.

Dyfyniad MLA

Johansson, Per- Olov. The Economic Theory and Measurement of Enviornmental Benefits. Cambridge University Press, 1994.

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