Παραπομπή σε μορφή APA (7η εκδ.)

National Research Council (U.S.). Committee on Earth Studies & ebrary, Inc. (2004). Steps to facilitate principal-investigator-led earth science missions. National Academies Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Research Council (U.S.). Committee on Earth Studies και Inc ebrary. Steps to Facilitate Principal-investigator-led Earth Science Missions. Washington, D.C.: National Academies Press, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Research Council (U.S.). Committee on Earth Studies και Inc ebrary. Steps to Facilitate Principal-investigator-led Earth Science Missions. National Academies Press, 2004.