E. F. CODD
https://www.seas.upenn.edu/~zives/03f/cis550/codd.pdf
I would add: An Introduction to Database Systems - Date
Also a few unmentioned so far: Discrete Mathematical Structures - Kolman
Introduction To Systems Analysis And Design - Hawryszkiewycz
Modern Operating Systems - Tanenbaum
E. F. CODD
https://www.seas.upenn.edu/~zives/03f/cis550/codd.pdf