APA-viite (7. p.)
Riley, D. (1995). Check your vocabulary for hotels, tourism & catering management a workbook for users (1a. ed.). Peter Collin Publishig.
Chicago-viite (17. p.)
Riley, David. Check Your Vocabulary for Hotels, Tourism & Catering Management a Workbook for Users. 1a. ed. Peter Collin Publishig, 1995.
MLA-viite (9. p.)
Riley, David. Check Your Vocabulary for Hotels, Tourism & Catering Management a Workbook for Users. 1a. ed. Peter Collin Publishig, 1995.
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