"Bicentennial Lewis Clark Expedition Issue", Arago: people, postage%DIFDELCMD < & %%% the post, National Postal Museum online, viewed April 28, 2014.
<coherence> "Bicentennial Lewis Clark Expedition Issue", Arago: people, postage%DIFDELCMD < & %%% the post, National Postal Museum online, viewed April 28, 2014.
"Bicentennial Lewis %DIFDELCMD < & %%% the post, National Postal Museum online, viewed April 28, 2014.