The 1970 Business and Economic Statistics Section Thoughts on an X–12 Bokkapitel Referens Klevmarken, Anders och Joseph M. Bonin (1970). ”Thoughts on an X–12”. I The 1970 Business and Economic Statistics Section (535–540). Proceedings of the American Statistical Association. Washington D.C.: American Statistical Association. Författare Anders Klevmarken, Joseph M. Bonin Anders Klevmarken