[1] https://www.amazon.com/Mac-OS-Internals-Approach-paperback/d...
http://www.nextop.de/NeXTstep_3.3_Developer_Documentation/
https://www.amazon.com/Mac-OS-Internals-Approach-paperback/d...
https://www.amazon.com/Mac-OS-iOS-Internals-Apples/dp/111805...
[1] https://www.amazon.com/Mac-OS-Internals-Approach-paperback/d...