Can you recommend some books about oscillator design?

RF Circuit Design - Ludwig.
RF/Microwave circuit design for wireless applications by Ulrich

Oscillator Design and Computer Simulation Randall W. Rhea.
RHea was the founder and president of eagleware which was acquired by agilent.

also the Ulrich Rohde Oscillator book , it is great

khouly

try "RF and Microwave Transistor Oscillator Design by Andrei Grebennikov"

Thanks!