00542cam a2200157 a 4500008004100000020003600041020003500077100002300112245007600135260007300211300002600284650001500310650001500325650002200340050002200362961112s1997    paua     b   s001 0 eng    a0271016949 (cloth : alk. paper)  a0271016957 (pbk. : alk. paper)1 aWalton, Douglas N.10aAppeal to expert opinion :barguments from authority /cDouglas Walton.  aUniversity Park, Pa. :bPennsylvania State University Press,cc1997.  axiv, 281 p. :bill. ; 0aReasoning. 0aAuthority. 0aFallacies (Logic)00aBC177b.W315 1997