book for crystal oscillator

I use this one:

Design of Crystal and Other Harmonic Oscillators (Hardcover)
by Benjamin Parzen (Author)

i need also,(about Crystal Oscillator design)
can tell me a website downlaod that it is free? or
if y have ,can send me one?
my ail bujismall@163.com
thanks....!

Added after 1 minutes:

my mail: bujismall@163.com

Added after 14 seconds:

my mail: bujismall@163.com
thanks....!