National Geographic Society (U. S.)
(295)
Royal Horticultural Society
(44)
American Society of Mechanical Engineers
(36)
Royal Society of Chemistry (COR)
(28)
Society for American Baseball Research (COR)
(24)
Royal Horticultural Society (COR)
(23)
African Wild Life Society
(19)
Massachusetts Medical Society
(14)
Minnesota Historical Society
(14)
Society of Automotive Engineers (EDT)/ The International Federation of (EDT)
(13)
Church Missionary Society
(12)
American Colonization Society
(11)
Society for Cinema and Media Studies
(11)