1942, S., A., R., 1934), J., L., M., (., M.(28).Intermediate algebra / Arnold R. Steffensen, L. Murphy Johnson (Ed.ke-4).New York:Harper Collins Publishers.
Gaya MLA
Steffensen, Arnold, R.,, 1942., Johnson, L., Murphy, (Lee, Murphy,, 1934)."Intermediate algebra / Arnold R. Steffensen, L. Murphy Johnson".Ed.ke-4New York:Harper Collins Publishers,28.Textbook.