APA (7th ed.) Citation

Darrow, F. L. (1930). The new world of physical discovery. Bobbs-Merrill.

Chicago Style (17th ed.) Citation

Darrow, Floyd L. The New World of Physical Discovery. Indianapolis: Bobbs-Merrill, 1930.

MLA (9th ed.) Citation

Darrow, Floyd L. The New World of Physical Discovery. Bobbs-Merrill, 1930.