Chicago

Products Laboratory (U.S.), Forest, Eugene L Keller, Ralph M Kingsbury, and Donald J Fahey. 1965. Neutral Sulfite Semichemical Pulping of Guaba (inga Vera), Yagrumo Hembra (cecropia Peltata), and Eucalyptus (eucalyptus Robusta) From Puerto Rico. : Madison, Wis. : U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory.