need help with books

[chrisfromtheuk]

hello all members,

i am new here and need your help , i have some books on lugers and need to know roughly what they are worth before i do anything with them ,

here is the list;

world of luger proof marks by costanzo vol 1
with a letter to my old friend asking for help in his next book.

the dutch luger
by martans and guus de vries

die pistole 08 by joachim gortz
signed saying thanks for help.

luger variations by jones

the luger pistol by fred datig

the luger book by j.walter

lugers at random by c . kenyan jr this is a long book

as above but standard book shape

krieghoff parabellum by randall gidson

and another of above.

if you can shed some light on the above please do.

regards
chris