Airspeed Envoy a Queen Mary (Letectví, May 1936)
Letectví (neznámý, unknown)
1936-05-15
Letectví, Vol. XVI. (1936), No. 5 (May), p. 179, <a rel="nofollow" class="external free" href="https://kramerius.army.cz/search/i.jsp?pid=uuid:bbee6e1b-5efe-11e9-b88d-005056b73ae5">https://kramerius.army.cz/search/i.jsp?pid=uuid:bbee6e1b-5efe-11e9-b88d-005056b73ae5</a>