Dyfyniad APA
National Research council. (1995). Standards, conformity assesment, and trade: Into 21 st. Century (1a. ed.). National Academy Press.
Dyfyniad Arddull Chicago
National Research council. Standards, Conformity Assesment, and Trade: Into 21 St. Century. 1a. ed. Washington D.C.: National Academy Press, 1995.
Dyfyniad MLA
National Research council. Standards, Conformity Assesment, and Trade: Into 21 St. Century. 1a. ed. National Academy Press, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.