American Geological Institute & Department of Science and Technology(DOST). (1992). Geology: Rocks that form on the earth's surface. Encyclopedia Britannica Educational Corporation.
Chicago Style (17th ed.) CitationAmerican Geological Institute and Department of Science and Technology(DOST). Geology: Rocks That Form on the Earth's Surface. Chicago, Ill: Encyclopedia Britannica Educational Corporation, 1992.
MLA (9th ed.) CitationAmerican Geological Institute and Department of Science and Technology(DOST). Geology: Rocks That Form on the Earth's Surface. Encyclopedia Britannica Educational Corporation, 1992.
Warning: These citations may not always be 100% accurate.