| 词条 | William L. "Bill" Effinger Jr. |
| 释义 |
References1. ^https://www.modelaircraft.org/files/EffingerWilliamLBill.pdf {{authority control}}{{DEFAULTSORT:Effinger, William, Jr.}}{{US-engineer-stub}}2. ^http://pioneersofflight.si.edu/content/berkeley-flying-cloud 3. ^http://www.jitterbuzz.com/bill_tribute.html 4. ^http://pioneersofflight.si.edu/content/berkeley-flying-cloud 5. ^https://www.newspapers.com/newspage/52696792/ 6. ^http://www.airplanesandrockets.com/airplanes/flexwings-may-june-1963-american-modeler.htm 7. ^http://www.zoominfo.com/p/William-Effinger/1184884160 8. ^http://www.zoominfo.com/CachedPage/?archive_id=0&page_id=-246884767&page_url=//www.jitterbuzz.com/endcompany.html&page_last_updated=2010-11-06T05:17:10&firstName=William&lastName=Effinger 9. ^http://www.zoominfo.com/CachedPage/?archive_id=0&page_id=2111856641&page_url=//www.collectair.com/Model_Airplanes.html&page_last_updated=2014-08-13T16:47:50&firstName=William&lastName=Effinger 10. ^http://www.zoominfo.com/CachedPage/?archive_id=0&page_id=2111856697&page_url=//www.collectair.com/kitannex3.html&page_last_updated=2014-08-13T16:47:50&firstName=William&lastName=Effinger 11. ^http://www.paulnoll.com/Oregon/Inspiration/memories-058.html 4 : Polytechnic Institute of New York University alumni|Massachusetts Institute of Technology alumni|Year of birth missing|Year of death missing |
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