Gaya APA

Johnson, L, M, (, M, 1., Steffensen, A, R, 1. (28). Intermediate algebra / Arnold R. Steffensen, L. Murphy Johnson (Ed.ke-4). New York: Harper Collins Publishers.

Gaya MLA

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