APA (7th ed.) Citation

BROWN, G. (1967). A new guide to modern valency theory. Longmans.

Chicago Style (17th ed.) Citation

BROWN, G.I. A New Guide to Modern Valency Theory. London: Longmans, 1967.

MLA (9th ed.) Citation

BROWN, G.I. A New Guide to Modern Valency Theory. Longmans, 1967.