00333nam a2200121Ia 4500082001900000100001700019245003900036260003400075300003400109490005800143500000500201700000500206 a519.5bD249.MP aDavid, H. A. aThe method of paired comparisonsb aLondonbCharles Griffinc1969 a124p. Index, Appendix, Tables aGriffin's Statistical monographs and coursesv no. 12 a a