Hurd, D. L., Kipling, J. J., & Schwartz, G. I. (1964). The origins and growth of physical science. Penguin Books.
Chicago Style (17th ed.) CitationHurd, David Leonard, J. J. Kipling, and George I. Schwartz. The Origins and Growth of Physical Science. Baltimore: Penguin Books, 1964.
MLA (9th ed.) CitationHurd, David Leonard, et al. The Origins and Growth of Physical Science. Penguin Books, 1964.