Cita APA (7a ed.)

Menacho, J. (1999). Earth's challenge: Ecology and justice in the XXI century. Cristianisme i Justícia.

Cita Chicago Style (17a ed.)

Menacho, Joaquín. Earth's Challenge: Ecology and Justice in the XXI Century. Barcelona: Cristianisme i Justícia, 1999.

Cita MLA (9a ed.)

Menacho, Joaquín. Earth's Challenge: Ecology and Justice in the XXI Century. Cristianisme i Justícia, 1999.