1. COOKE, MAY THACHER1939. Flight speed of birds. (Appendix A to a book on duck shooting by VanCampen Heilner): 405-415 (Penn. Publ. Co., Philadelphia.)Cooke405Flight speed of birds1939
2. HACHISUKA, MARQUESS, COUNT KiYosu, PRINCE TAKA-TSUKASA, DR. SEIOSUKE UCHIDA,AND MARQUIS YAMSHINA1942. A hand-list of the Japanese birds. Third revised edition, 8: 238.Hachisuka32388A hand-list of the Japanese birds1942
3. Detection of Birds by Radar
4. Detection of Birds by Radar