Likewise. The professor/lecturer taught the material in the class, with spoken word and blackboard scrawlings, with some paper handouts for the occasional supplement and for question papers. Recommended books were for those who wanted to go deeper in a particular area and were available for loan in the library and were very much indicated as so; you could pass every exam with no more than notes taken in class.

The idea that a book would be necessary for a class that a teacher should be teaching seems crazy.