APA (7th ed.) Citation

Umer, T. C., Romanowska, J. E., & Kumaniecka, J. (2014). Austria. Dorling Kindersley Limited.

Chicago Style (17th ed.) Citation

Umer, Teresa Czerniewicz, Joanna Egert Romanowska, and Janina Kumaniecka. Austria. London: Dorling Kindersley Limited, 2014.

MLA (9th ed.) Citation

Umer, Teresa Czerniewicz, et al. Austria. Dorling Kindersley Limited, 2014.