Cita APA (7th ed.)

McGee, E. S. (1999). Colorado Yule marble: Building stone of the Lincloln Memorial. U.S. Geological Survey.

Cita Chicago (17th ed.)

McGee, Elaine S. Colorado Yule Marble: Building Stone of the Lincloln Memorial. Reston, Virginia: U.S. Geological Survey, 1999.

Cita MLA (9th ed.)

McGee, Elaine S. Colorado Yule Marble: Building Stone of the Lincloln Memorial. U.S. Geological Survey, 1999.