Pascal

Pascal, a further development of Algol 60 and Algol 68, was created in the early 1970s by Niklaus Wirth, a professor at ETH Zurich.

Pascal was built for use with a classic compiler and, last but not least, uses a strict type concept for this reason: each variable is assigned a specific data type during translation (by this very compiler), and this can no longer be changed afterwards.

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Niklaus Wirth
Source: Graf von dem Bergh - Eigenes Werk, CC BY-SA 3.0

The Book I read: Methodik der Programmierung in Pascal, written by
Rudolf Marty, ISBN 3-540-12018-1 and 0-387-12018-1.

It is a very good and detailed book that I actually can recommend to you!