APA (7th ed.) Citation

Gregory, M. S. (1971). History and development of engineering. Longman.

Chicago Style (17th ed.) Citation

Gregory, Malcolm S. History and Development of Engineering. London: Longman, 1971.

MLA (9th ed.) Citation

Gregory, Malcolm S. History and Development of Engineering. Longman, 1971.

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