(1997). McGraw-Hill encyclopedia of science and technology; Vol.8: GEO - HYS. New York: McGraw-Hill.
Chicago Stili AlıntıMcGraw-Hill Encyclopedia of Science and Technology; Vol.8: GEO - HYS. New York: McGraw-Hill, 1997.
MLA AlıntıMcGraw-Hill Encyclopedia of Science and Technology; Vol.8: GEO - HYS. New York: McGraw-Hill, 1997.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..