NH
N. G. L. Hammond
Nicholas Geoffrey Lemprière Hammond, was a British historian, geographer, classicist and an operative for the British Special Operations Executive (SOE) in occupied Greece during the Second World War.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

Philip of Macedon
1994
ISBN 9780801849275
Sources for Alexander the Great
1993
ISBN 9780521432641