APA (7th ed.) Citation

Howson, C. (1997). Logic with trees: An introduction to symbolic logic. Routledge.

Chicago Style (17th ed.) Citation

Howson, Colin. Logic with Trees: An Introduction to Symbolic Logic. London: Routledge, 1997.

MLA (9th ed.) Citation

Howson, Colin. Logic with Trees: An Introduction to Symbolic Logic. Routledge, 1997.

Warning: These citations may not always be 100% accurate.