Cita APA (7th ed.)
Thornley, G. C. (1964). Scientific English Practice. (1a. ed.). Longman.
Cita Chicago (17th ed.)
Thornley, G. C. Scientific English Practice. 1a. ed. Londres: Longman, 1964.
Cita MLA (9th ed.)
Thornley, G. C. Scientific English Practice. 1a. ed. Longman, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.