Washington State Aeronautics Commission & Nuber, R. L. (1957). Decade of aviation progress during the administration of the Washington State Aeronautics Commission: Together with reports, commission accomplishments since March 1, 1956 and recommendations to the commission.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State Aeronautics Commission और Robert L. Nuber. Decade of Aviation Progress During the Administration of the Washington State Aeronautics Commission: Together with Reports, Commission Accomplishments Since March 1, 1956 and Recommendations to the Commission. [Seattle], 1957.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington State Aeronautics Commission और Robert L. Nuber. Decade of Aviation Progress During the Administration of the Washington State Aeronautics Commission: Together with Reports, Commission Accomplishments Since March 1, 1956 and Recommendations to the Commission. 1957.