APA

Robles Gil P., Mittermeier R. A., Mittermeier C. G., Pilgrim J., Fonseca G., Konstant W. & Brooks T. (2002). Areas silvestres. México D. F: Cemex.

Chicago

Robles Gil Patricio, Mittermeier Russell A, Mittermeier Cristina Goettsch, Pilgrim John, Fonseca Gustavo, Konstant William and Brooks Thomas. 2002. Areas silvestres. México D. F: Cemex.

Harvard

Robles Gil P., Mittermeier R. A., Mittermeier C. G., Pilgrim J., Fonseca G., Konstant W. and Brooks T. (2002). Areas silvestres. México D. F: Cemex.

MLA

Robles Gil Patricio, Mittermeier Russell A, Mittermeier Cristina Goettsch, Pilgrim John, Fonseca Gustavo, Konstant William and Brooks Thomas. Areas silvestres. México D. F: Cemex. 2002.