Cita APA (7a ed.)
Bolitho, A., & Sandler, P. (1983). Learn English for Science (5.Ed.). Longman Group UK.
Cita Chicago Style (17a ed.)
Bolitho, A.R, y P.L Sandler. Learn English for Science. 5.Ed. Essex: Longman Group UK, 1983.
Cita MLA (9a ed.)
Bolitho, A.R, y P.L Sandler. Learn English for Science. 5.Ed. Longman Group UK, 1983.
Precaución: Estas citas no son 100% exactas.