I won't get too detailed, but this might help you a bit.
WS = Weapon Skill BS = Ballistic Skill S = Strength T = Toughness W = Wounds I = Initiative A = Attacks Ld = Leadership Sv = Save
A: The library (if yours has them) B: sitting in a corner in a book store (i use borders) and reading themC: their is this website called http://www.scribd.com and that is what i would dothis also...
"The Tyranids are an extragalactic alien race, whose sole purpose is the consumption of all forms of genetic and biological material in order to evolve and reproduce. Tyranid technology is based...