An international guide to stratigraphic classification, terminology, and usage :
introduction and summary /
edited by Hollis D. Hedberg
APA Citation
International Geological Congress. (24th : 1972 : Montreal)., Hedberg, H. Dow. (1972). An international guide to stratigraphic classification, terminology, and usage: introduction and summary. Oslo: Universitetsforlaget.
MLA Citation
International Geological Congress. (24th : 1972 : Montreal), and Hollis Dow Hedberg. An International Guide to Stratigraphic Classification, Terminology, And Usage: Introduction And Summary. Oslo: Universitetsforlaget, 1972.
Warning: These citations may not always be complete (especially for serials).