Yeates, E., Millin, S., Harrison, M., Ball, R., & Watkins, F. (2016). Keynote: Upper Intermediate. Workbook (1a. ed.). National Geographic Learning.
Citace podle Chicago (17th ed.)Yeates, Eunice, Sandy Millin, Mike Harrison, Rhiannon Ball, a Fran Watkins. Keynote: Upper Intermediate. Workbook. 1a. ed. Hampshire: National Geographic Learning, 2016.
Citace podle MLA (9th ed.)Yeates, Eunice, et al. Keynote: Upper Intermediate. Workbook. 1a. ed. National Geographic Learning, 2016.
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