APA (7th ed.) Citation

Salvador, A. (1994). International stratigraphic guide: A guide to stratigraphic classification, terminology and procedure (2nd ed.). The International Union of Geological Sciences and the Geological Society of America.

Chicago Style (17th ed.) Citation

Salvador, Amos. International Stratigraphic Guide: A Guide to Stratigraphic Classification, Terminology and Procedure. 2nd ed. Colorado: The International Union of Geological Sciences and the Geological Society of America, 1994.

MLA (9th ed.) Citation

Salvador, Amos. International Stratigraphic Guide: A Guide to Stratigraphic Classification, Terminology and Procedure. 2nd ed. The International Union of Geological Sciences and the Geological Society of America, 1994.