APA (7th ed.) Citation

(1977). European research index: A guide to European research, including medicine, agriculture and engineering (4th ed.). Hodgson.

Chicago Style (17th ed.) Citation

European Research Index: A Guide to European Research, Including Medicine, Agriculture and Engineering. 4th ed. Guernsey: Hodgson, 1977.

MLA (9th ed.) Citation

European Research Index: A Guide to European Research, Including Medicine, Agriculture and Engineering. 4th ed. Hodgson, 1977.