Gaya APA

Joreskog, K., Klovan, J. (1976). Methods in Geomathematics 1 Geological Factor Analysis . Amsterdam: Elsevier Scientific Pub. Co..

Gaya MLA

Joreskog, K.G., Klovan, J.E. "Methods in Geomathematics 1 Geological Factor Analysis". Amsterdam: Elsevier Scientific Pub. Co., 1976. Text.