Cita APA (7a ed.)

Sears, D. J. (1991). To kill again: The motivation and development of serial murder (1. publ.). Scholarly Resources Books.

Cita Chicago Style (17a ed.)

Sears, Donald J. To Kill Again: The Motivation and Development of Serial Murder. 1. publ. Wilmington, Del: Scholarly Resources Books, 1991.

Cita MLA (8a ed.)

Sears, Donald J. To Kill Again: The Motivation and Development of Serial Murder. 1. publ. Scholarly Resources Books, 1991.