SPECIAL HORTICULTURAL SOCIETIES. COLLECTIONS U.S. Dept. of Agriculture. Library.
SCL Horticultural organizations of the United States 2h and Canada. Compiled by Magdalene R. Newman, .25R Washington, D.C., 1942.
Op. 27cm.
Reproduced from type-written copy. For earlier edition, see U.S. Bureau of Plant Industry.
MB=Rev.