R. G. Preston

G. P. · G Preston · R. P.

title	ISBN-13	year of publication
3801 - a Legend in Steam	978-0-646-11931-1	1992
A Great Place To Work.	978-0-646-36996-9	1999
Essays in Steam	978-0-646-24591-1	1995
The 50 Class: Standards in Steam	978-0-646-09135-8	1992