International Horticultural Congress 1966 : University of Maryland) creator Marshall, Roy E. (Roy Edgar) 1890-1966 ed. Tukey, Harold Bradford 1896- ed. American Horticultural Society American Society for Horticultural Science International Society for Horticultural Science text East Lansing? Mich.] 1966-67 monographic 4 v. illus., ports. 24 cm. Edited by Roy E. Marshall. Vols. 2-4 edited by H. B. Tukey, Sr. "Sponsored by the American Horticultural Society, the American Society for Horticultural Science [and] the International Society for Horticultural Science, in cooperation with the American Institute of Biological Sciences." Includes bibliographical references. Horticulture Congresses SB94 .P76 1966 Vol. 4 635 79024715 UOEL 000 20150417145818.0 865238