Northrup, E. F. (1917). Laws of physical science: A reference book. J.B. Lippincott company.
Chicago Style (17th ed.) CitationNorthrup, Edwin F. Laws of Physical Science: A Reference Book. Philadelphia ; London: J.B. Lippincott company, 1917.
MLA (9th ed.) CitationNorthrup, Edwin F. Laws of Physical Science: A Reference Book. J.B. Lippincott company, 1917.
Warning: These citations may not always be 100% accurate.