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by Amstrong, Foster; Klein, Richard; Armstrong, Cara; et al.
by Richard N. Armstrong
by Armstrong, Richard
by Armstrong, Richard B.; Armstrong, Mary Willems
by O'Clair, Rita M.; Armstrong, Robert H.; Carstensen, Richard
by Carstensen, Richard; Armstrong, Robert H.; O'Clair, Rita M.
by Cavari, Amnon; Powell, Richard J.; Mayer, Kenneth R.; et al.
by Armstrong, Richard Stoll
by Armstrong, Richard C.; Healy, Martin, Jr.