Gaya APA

Shearn, R. et al (2012). English at work I (+ CD ) . Taipei, taiwan, R.O.C.: Cengage Learning Asia PTe Ltd..

Gaya MLA

Shearn, Ricahrd. et al. "English at work I (+ CD )". Taipei, taiwan, R.O.C.: Cengage Learning Asia PTe Ltd., 2012. Text.