A History of North American birds von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert

Birds of the Galapagos Archipelago Smithsonian Institution. United States National Museum. By Robert Ridgway. (With 2 Plates.) [Umschlagtitel.] von Ridgway, Robert

Directions for collecting birds von Ridgway, Robert

The water birds of North America von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert 1850-1929

kostenfrei

The water birds of North America von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert 1850-1929

kostenfrei

Nomenclature of the North American birds contained in the U.S. National Museum von Ridgway, Robert 1850-1929

kostenfrei

Diagnoses of some new genera of birds von Ridgway, Robert

Color standards and color nomenclature with fifty-three colored plates and eleven hundred and fifteen named colors von Ridgway, Robert 1850-1929

A History of North American birds von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert

A History of North American birds von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert

Directions for collecting birds von Ridgway, Robert

kostenfrei

The water birds of North America von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert 1850-1929

Report of the geological exploration of the fortieth parallel made by order of the secretary of war according to acts of congress of March 2, 1867, and March 3, 1869 von Hall, James, Ridgway, Robert

A History of North American birds von Baird, Spencer Fullerton 1823-1887, Brewer, Thomas Mayo, Ridgway, Robert