Cita APA (7a ed.)

Greenfield, H. I. (1993). Invisible, outlawed, and untaxed: America's underground economy (1. publ.). Praeger.

Cita Chicago Style (17a ed.)

Greenfield, Harry I. Invisible, Outlawed, and Untaxed: America's Underground Economy. 1. publ. Westport, Conn. [u.a.]: Praeger, 1993.

Cita MLA (8a ed.)

Greenfield, Harry I. Invisible, Outlawed, and Untaxed: America's Underground Economy. 1. publ. Praeger, 1993.