no. 1. [without special title]
no. 2. Pt. I, chapter G, general group theory
no. 3. Pt. I, chapter A, almost simple K-groups
no. 4. Pt. II, chapters 1-4, uniqueness theorems
no. 5. Pt. III, chapters 1-6, the generic case, stages 1-3a
no. 6. Pt. IV, The special odd case.
The classification of the finite simple groups by Daniel Gorenstein. ISBN 0821827774. Published by American Mathematical Society in 1994. Publication and catalogue information, links to buy online and reader comments.