Cita APA (7th ed.)

Ehrlich, P., & Kinne, O. (1997). A world of wounds: Ecologists and the human dilemma. Ecology Institute.

Cita Chicago (17th ed.)

Ehrlich, P.R, i O. Kinne. A World of Wounds: Ecologists and the Human Dilemma. Oldendorf/Luhe, Germany: Ecology Institute, 1997.

Cita MLA (9th ed.)

Ehrlich, P.R, i O. Kinne. A World of Wounds: Ecologists and the Human Dilemma. Ecology Institute, 1997.