PALMER, C. I., & BIBB, S. F. (1952). Pratical mathematics. McGraw-hill.
Cita Chicago (17th ed.)PALMER, Claude Irwin, i Samuel Fletcher BIBB. Pratical Mathematics. New York: McGraw-hill, 1952.
Cita MLA (9th ed.)PALMER, Claude Irwin, i Samuel Fletcher BIBB. Pratical Mathematics. McGraw-hill, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.