Spencer,Edgar W. (1969). Introduction to the structure of the earth. Mc Graw Hill.
Chicago Edition CitationSpencer,Edgar W. Introduction to the Structure of the Earth. New York: Mc Graw Hill, 1969.
MLA Edition CitationSpencer,Edgar W. Introduction to the Structure of the Earth. Mc Graw Hill, 1969.
Warning: These citations may not always be 100% accurate.