Rohrbach, P. T., & Newman, L. S. (1984). American issue: The U.S. postage stamp, 1842-1869. Smithsonian Institution Press.
Cita Chicago Style (17a ed.)Rohrbach, Peter T., y Lowell S. Newman. American Issue: The U.S. Postage Stamp, 1842-1869. Washington, D.C.: Smithsonian Institution Press, 1984.
Cita MLA (8a ed.)Rohrbach, Peter T., y Lowell S. Newman. American Issue: The U.S. Postage Stamp, 1842-1869. Smithsonian Institution Press, 1984.
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