Philadelphia's Poison Ring

Books/Journals

Poison Widows, by George Cooper March 1999, St. Martins Press; ISBN: 0-312-19947-3

Stedman's Medical Dictionary, by Thomas Lathrop Stedman; January 15, 2000, Lippincott, Williams & Wilkins; ISBN: 068340007X

Hunting Humans, by Michael Newton; September 1991, Breakout Productions; ASIN: 1559500263

Newspapers

The Philadelphia Inquirer Pennsylvania

The Ledger Pennsylvania

New York Daily News New York

The New York Times New York

Internet

Lit Cigars Smoke Screen 

Individuals

Denise C. Massie