APA

Westing A. H., Ecology symposium in commemoration of the 500th anniversary of the birth of Bartolemé de Las Casas, . (1974). Temperate man versus tropical forest. San Cristóbal de Las Casas, Chiapas, México: s. n.

Chicago

Westing Arthur H, Ecology symposium in commemoration of the 500th anniversary of the birth of Bartolemé de Las Casas, . 1974. Temperate man versus tropical forest. San Cristóbal de Las Casas, Chiapas, México: s. n.

Harvard

Westing A. H., Ecology symposium in commemoration of the 500th anniversary of the birth of Bartolemé de Las Casas, . (1974). Temperate man versus tropical forest. San Cristóbal de Las Casas, Chiapas, México: s. n.

MLA

Westing Arthur H, Ecology symposium in commemoration of the 500th anniversary of the birth of Bartolemé de Las Casas, . Temperate man versus tropical forest. San Cristóbal de Las Casas, Chiapas, México: s. n. 1974.