Bonner, Mary Graham, 1890-1974. Couriers of the sky; the story of pigeons, by Mary Graham Bonner. - "First edition." - New York, A. A. Knopf, 1944. - 5 p. l., 3-82 p., 1 l. illus., plates (1 double) 19 cm. LCCN: agr44000223 Subjects--Topical Terms: Pigeons. LC Class. No.: SF465 / .B6 Dewey Class. No.: 636.596