Dwarf mistletoe on sugar pine - Scharpf, Robert F., 1931-; Hawksworth, Frank G., 1926- ([Washington, U.S. Govt. Print. Off.], 1968)
Caption title.
Bibliography: p. 4.
Keywords: Western dwarf mistletoe; Sugar pine -- Diseases and pests; Arceuthobium campylopodum; Pinus lambertiana -- Diseases