APA (7th ed.) Citation

International Geological Congress London. (1950). Report of the eighteenth session, Great Britain, 1948. [publisher not identified].

Chicago Style (17th ed.) Citation

International Geological Congress London. Report of the Eighteenth Session, Great Britain, 1948. London: [publisher not identified], 1950.

MLA (9th ed.) Citation

International Geological Congress London. Report of the Eighteenth Session, Great Britain, 1948. [publisher not identified], 1950.

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