Cita APA

(1989). Our changing planet: The fy ---: U.S. global change research program. [Estados Unidos de América]: National Science and Technology Council.

Citación estilo Chicago

Our Changing Planet: The Fy ---: U.S. Global Change Research Program. [Estados Unidos de América]: National Science and Technology Council, 1989.

Cita MLA

Our Changing Planet: The Fy ---: U.S. Global Change Research Program. [Estados Unidos de América]: National Science and Technology Council, 1989.