Παραπομπή APA

Firor, J. (1990). Changing atmosphere: : a global challege. Yale University press.

Παραπομπή Chicago Style

Firor, John. Changing Atmosphere: : A Global Challege. London: Yale University press, 1990.

Παραπομπή MLA

Firor, John. Changing Atmosphere: : A Global Challege. Yale University press, 1990.