Cita APA (7a ed.)
Thornley, G. C. (1971). Elementary scientific English Practice. Longman.
Cita Chicago Style (17a ed.)
Thornley, Granville Calland. Elementary Scientific English Practice. London: Longman, 1971.
Cita MLA (9a ed.)
Thornley, Granville Calland. Elementary Scientific English Practice. Longman, 1971.
Precaución: Estas citas no son 100% exactas.