Dyfyniad APA

Frank Ackerman. (2008). Poisoned for Pennies. The Economics of Toxics and Precaution.

Dyfyniad Arddull Chicago

Frank Ackerman. Poisoned for Pennies. The Economics of Toxics and Precaution. 2008.

Dyfyniad MLA

Frank Ackerman. Poisoned for Pennies. The Economics of Toxics and Precaution. 2008.

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