Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitlePROBLEM DEPARTMENT.AuthorsGIBBS, RICHARD A.; SZUECS, LASZLOPublicationSchool Science & Mathematics, 1987, Vol 87, Issue 2, p164ISSN0036-6803Publication typeArticleDOI10.1111/j.1949-8594.1987.tb11690.x