Epstein, S. (1960). The first book of measurement. F. Watts.
Cita Chicago (17th ed.)Epstein, Sam. The First Book of Measurement. New York: F. Watts, 1960.
Cita MLA (9th ed.)Epstein, Sam. The First Book of Measurement. F. Watts, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.