Ewer, J. R. (1969). A course in basic scientific english. Longman.
Cita Chicago (17th ed.)Ewer, J. R. A Course in Basic Scientific English. Longman, 1969.
Cita MLA (9th ed.)Ewer, J. R. A Course in Basic Scientific English. Longman, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.