APA (7th ed.) Citation

Francis Hodgson Reference Publications & Burkett, J. (1979). Directory of scientific directories: A world guide to scientific directories including medicine, agriculture, engineering, manufacturing and industrial directories (Third edition.). Francis Hodgson.

Chicago Style (17th ed.) Citation

Francis Hodgson Reference Publications and Jack Burkett. Directory of Scientific Directories: A World Guide to Scientific Directories Including Medicine, Agriculture, Engineering, Manufacturing and Industrial Directories. Third edition. Harlow: Francis Hodgson, 1979.

MLA (9th ed.) Citation

Francis Hodgson Reference Publications and Jack Burkett. Directory of Scientific Directories: A World Guide to Scientific Directories Including Medicine, Agriculture, Engineering, Manufacturing and Industrial Directories. Third edition. Francis Hodgson, 1979.