R. G. D. (Robert George Dalrymple) Laffan

title	ISBN-13 (ISBN-10)	year of publication
The Guardians of the Gate: Historical Lectures on the Serbe, by R. G. D. Laffan, With a Foreword by Vice-Admiral E. T. Troubridge	978-1-112-117O3-9 (1-112-117O3-2)	2009