One of the most (justly) popular macroeconomic textbooks in the '70s was William H. Branson's _Macroeconomic Theory & Policy_ (1967, 1972, 1979, 1989) which relied heavily on the IS-LM apparatus. Indeed the whole book was structured around it. I remember that in the late 70s in the GRE exams if you could move around the IS-LM like a cat's cradle you could pass with flying colours the macro section. No assembly required. Nicholas J. Theocarakis