APA (7th ed.) Citation

Spencer, D. D. (1995). Key dates in number theory history: From 10,529 B.C. to the present. Camelot Publishing Company.

Chicago Style (17th ed.) Citation

Spencer, Donald D. Key Dates in Number Theory History: From 10,529 B.C. to the Present. Ormond Beach, Florida: Camelot Publishing Company, 1995.

MLA (8th ed.) Citation

Spencer, Donald D. Key Dates in Number Theory History: From 10,529 B.C. to the Present. Camelot Publishing Company, 1995.