por Robert. L. Sutherland Symposium (3 : 1986 : Austin, Texas) | Rodríguez, Graciela [compilador] | Chism, Katherine [editor] | Herbert, George K [editor] | Williams, Martha S [editor].
por Symposium On Health And Human Services In The United States And Mexico (1987 : Mexico, D.f.) | Selber, Katherine [editor] | Rodriguez, Graciela [editor] | Williams, Martha S [editor].