Does anyone know what textbook he's referring to as the one he used as a base for his original lectures? Sounds like 'Weidner and Selz', supposedly out of print

Does anyone know what textbook he's referring to as the one he used as a base for his original lectures? Sounds like 'Weidner and Selz', supposedly out of print? http://www.youtube.com/watch?v=WwslBPj8GgI#t=22m53s http://www.youtube.com/watch?v=WwslBPj8GgI#t=22m53s