Howson, C. (1997). Logic with trees: An introduction to symbolic logic. Routledge.
Chicago Edition CitationHowson, Colin. Logic with Trees: An Introduction to Symbolic Logic. London ; New York: Routledge, 1997.
MLA Edition CitationHowson, Colin. Logic with Trees: An Introduction to Symbolic Logic. Routledge, 1997.
Warning: These citations may not always be 100% accurate.