Gaya APA
Henderson, N, (.
(1940).
Failure of a mission, Berlin 1937-1939
.
London:
Hodder & Stoughton.
Gaya MLA
Henderson, Nevile., (1882-1942).
"Failure of a mission, Berlin 1937-1939 ".
London:
Hodder & Stoughton,
1940.
Buku.