Geographic distribution of the pines of the world /
Critchfield, William Burke.
Geographic distribution of the pines of the world / by William B. Critchfield and Elbert L. Little, Jr. - Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1966. - v, 97 p. : 61 col. maps ; 30 cm. - Miscellaneous publication / United States Department of Agriculture ; no. 991 . - Miscellaneous publication (United States. Department of Agriculture) ; no. 991. .
Cover title. Includes index.
Bibliography: p. 21-29.
agr66000366
Pine--Geographical distribution.
S21 / .A46 no. 991
634.9/751
1 / Ag84M no.991
Geographic distribution of the pines of the world / by William B. Critchfield and Elbert L. Little, Jr. - Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1966. - v, 97 p. : 61 col. maps ; 30 cm. - Miscellaneous publication / United States Department of Agriculture ; no. 991 . - Miscellaneous publication (United States. Department of Agriculture) ; no. 991. .
Cover title. Includes index.
Bibliography: p. 21-29.
agr66000366
Pine--Geographical distribution.
S21 / .A46 no. 991
634.9/751
1 / Ag84M no.991