Avia Fokker F.VIIb/3m s motory Škoda-Wright Whirlwind (Letec, červen 1933)
Letec (neznámý, unknown)
1933-06-01
Letec, Vol. IX. (1933), No. 6 (June), p. 55, <a rel="nofollow" class="external free" href="https://kramerius.army.cz/search/i.jsp?pid=uuid:8a462c05-5199-11e7-9ca0-005056b73ae5">https://kramerius.army.cz/search/i.jsp?pid=uuid:8a462c05-5199-11e7-9ca0-005056b73ae5</a>