Cita APA (7a ed.)

Tashkin, D. P. (1999). Effects of marijuana on the lung and its defenses against infection and cancer. [s.n.].

Cita Chicago Style (17a ed.)

Tashkin, Donald P. Effects of Marijuana on the Lung and Its Defenses Against Infection and Cancer. [S.l.]: [s.n.], 1999.

Cita MLA (9a ed.)

Tashkin, Donald P. Effects of Marijuana on the Lung and Its Defenses Against Infection and Cancer. [s.n.], 1999.

Precaución: Estas citas no son 100% exactas.