GENCO, Robert J. 805.024 PROCEEDINGS Proceedings of the 1996 Joint Symposium on Clinical Trial Design and Analysis in Periodontics / [ed.-in-chief Robert J. Genco ; guest ed. Roy C. Page]. - [Chicago] : The American Academy of Periodontology, 1997. - [4], 369 s. : il., wykr. ; 28 cm. - (Annals of Periodonto1ogy ; vol. 2, nr 1)