Frome, M. (1998). Green ink: An introduction to environmental journalism. University of Utah Press.
Chicago-referens (17:e uppl.)Frome, Michael. Green Ink: An Introduction to Environmental Journalism. Salt Lake City, Utah: University of Utah Press, 1998.
MLA-referens (9:e uppl.)Frome, Michael. Green Ink: An Introduction to Environmental Journalism. University of Utah Press, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.