Cita APA (7th ed.)
Hirsch, L., & Goodman, A. (1986). Understanding intermediate algebra: A course for college students. West Pub. Co..
Cita Chicago (17th ed.)
Hirsch, Lewis, i Arthur Goodman. Understanding Intermediate Algebra: A Course for College Students. St. Paul: West Pub. Co., 1986.
Cita MLA (9th ed.)
Hirsch, Lewis, i Arthur Goodman. Understanding Intermediate Algebra: A Course for College Students. West Pub. Co., 1986.
Atenció: Aquestes cites poden no estar 100% correctes.