[Hancock, Harry E., 1950, Wireless at sea, the first fifty years: a history, Marconi International Marine Communication Company, London]
[Hancock, Harry Edgar, "Wireless at sea, the first fifty years: a history",
written to commemorate the Jubilee of the Marconi International Marine Communication Company Limited.
1950. Illus., ports., maps, facsims ; 22 cm. Held by 1 library
State Library NSW has one copy in offsite storage. available after 4pm on day after request
could be a useful reference
