Hurd, D. L., Kipling, J. J., & Schwartz, G. I. (1964). The origins and growth of physical science. Penguin Books.
Chicago-čujuhus (17. p.)Hurd, David Leonard, J. J. Kipling, juo George I. Schwartz. The Origins and Growth of Physical Science. Baltimore: Penguin Books, 1964.
MLA-čujuhus (9. p.)Hurd, David Leonard, et al. The Origins and Growth of Physical Science. Penguin Books, 1964.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.