Robbins, R. M. (1962). Our landed heritage: The public domain, 1776-1936. Nebraska U.P..
Cita Chicago (17th ed.)Robbins, Roy Marvin. Our Landed Heritage: The Public Domain, 1776-1936. Lincoln: Nebraska U.P., 1962.
Cita MLA (8th ed.)Robbins, Roy Marvin. Our Landed Heritage: The Public Domain, 1776-1936. Nebraska U.P., 1962.
Atenció: Aquestes cites poden no estar 100% correctes.